Eczema and Itch Specialists

Dr. Harrison Nguyen, MD, MBA, MPH, DTM&H, FAAD
Dr. Harrison Nguyen
His approach combines careful diagnosis, advanced medical therapies, procedural expertise when appropriate, and long-term treatment planning designed around each patient’s symptoms, lifestyle, and goals. Dr. Nguyen understands that chronic eczema and itching can affect sleep, confidence, work, and quality of life, and he places a strong emphasis on education, communication, and shared decision-making.
Through clinical expertise and a commitment to innovation, Dr. Nguyen helps patients explore comprehensive treatment options for atopic dermatitis, contact dermatitis, hand eczema, neurodermatitis, seborrheic dermatitis, stasis dermatitis, and other chronic itch-related concerns.
Dr. Harrison Nguyen provides individualized dermatology care for people with eczema and persistent itch. As an atopic dermatitis specialist, he evaluates symptom patterns, treatment history, and possible triggers to help guide an evidence-based plan for relief and long-term skin management.
National Eczema Association Provider
National Psoriasis Foundation Healthcare Professional
Dr. Harrison Nguyen is listed in the National Psoriasis Association
This recognition reflects a commitment to helping psoriasis and psoriatic disease patients work toward clear or nearly clear skin through guideline based care and ongoing clinical expertise.
Credentials and Academic Appointments
Board Certification
- Double board certified by the American Board of Dermatology in Dermatology and Micrographic Surgery and Dermatologic Oncology.
Fellowship and Residency Training
- Fellowship-trained in Mohs Micrographic, Laser, and Cosmetic Surgery at the University of Pennsylvania.
- Dermatology residency and Chief Residency at Emory University School of Medicine.
Academic Appointments and Leadership
- Clinical Associate Professor, University of Houston College of Medicine.
- Clinical Assistant Professor, Baylor College of Medicine.
- Chief Investigator, Harrison Institute for Clinical Research.
- Founder/CEO, Harrison Dermatology & Research Group.
Professional Affiliations
- Fellow, American Academy of Dermatology.
Relevant Eczema / Itch / Psoriasis Expertise
- Specialized clinical interest in atopic dermatitis, eczema, chronic pruritus, prurigo nodularis, chronic hand eczema, and psoriasis.
- Principal investigator in prospective atopic dermatitis, eczema, pruritus and psoriasis studies.
- Experience with biologics, JAK inhibitors, TYK2 inhibitors, IL-23 therapies, topical therapies and other emerging targeted treatments.
- Investigator in both clinical trials and real-world effectiveness studies.
- Published research in eczema/skin-barrier science and chronic pruritus.
- International and national lecturer on atopic dermatitis, Type 2 inflammation and psoriasis.
- Research experience involving adults and adolescents with inflammatory skin disease.
Research and Publications
Eczema / Atopic Dermatitis Publications
- Over-the-Counter Moisturizers Significantly Improve Skin Hydration in Adults With Eczema/Atopy-Prone Skin
Nguyen H, Nguyen T, Mantilla A, Emesiani C, Meckfessel M.
Journal of Drugs in Dermatology. 2023;22(10 Suppl 2):s16-s20.
Published online September 30, 2023 / October 2023 issue.
PMID: 37801542. DOI: 10.36849/JDD.8641.
Randomized, double-blind clinical study evaluating skin hydration, transepidermal water loss and ceramide levels in adults with eczema/atopy-prone skin.
PubMed record | Full journal article
Chronic Itch / Pruritus Publications
- Nemolizumab Demonstrates Marked Efficacy in Challenging Chronic Pruritus: A Real-world Multicenter Case Series
Dasilva DR, Soto-González A, Mollanazar NK, et al., Nguyen HP, Yosipovitch G, Del Rosso J.
Journal of Clinical and Aesthetic Dermatology. 2025;18(9):40-46.
Published September 2025.
PMID: 41416230.
This multicenter real-world study identifies affiliations with Harrison Dermatology & Research Group and University of Houston College of Medicine.
PubMed record | Free full-text article
Psoriasis Publications
- Next-Generation TYK2 Inhibitors in Psoriasis
Nguyen C, Nguyen C, Nguyen HP.
Practical Dermatology. Published online 2026.
View article
- Response regarding tuberculosis risk with IL-17, IL-23, IL-12/23, JAK inhibitors and other systemic treatments
Nguyen HP, Song EJ, Lain ET, Sobell JM, Stein-Gold L, Lebwohl MG.
Journal of the American Academy of Dermatology. Epub April 24, 2026; published August 2026;95(2):e223-e225.
DOI: 10.1016/j.jaad.2026.03.114. PMID: 42036026.
Relevant to psoriasis/systemic inflammatory disease therapy and safety.
PubMed record
Presentations — Eczema / Itch / Psoriasis
- Effect of Risankizumab Compared With Deucravacitinib on Health-Related Quality of Life and Treatment Satisfaction Among Patients With Moderate Plaque Psoriasis: Phase 4 IMMpactful Trial — EADV 2026, Vienna, Austria.
- Type 2 Inflammation — DuTell Academy 5th Annual Meeting, 2026.
- JAK Inhibition in Atopic Dermatitis — European Academy of Dermatology and Venereology Annual Meeting, 2025, Paris, France.
- Efficacy of Risankizumab on Scalp Psoriasis Symptoms at Week 52 in the Unlimmited Clinical Trial — Society for Investigative Dermatology, 2026.
- SPECTREM: Guselkumab Efficacy Across Multiple High-Impact Sites in Participants with Low BSA, Moderate Psoriasis — Winter Clinical Dermatology Conference–Hawaii, 2025.
Clinical Trials — Atopic Dermatitis / Eczema
Principal Investigator
- ALIGN-AD — Performance of Advance AD-Tx to Align Appropriate Treatment for Patients Utilizing Systemic Treatment for Atopic Dermatitis.
- DETECT-AD — evaluation of a non-invasive device for early detection of flares in adults and adolescents with atopic dermatitis.
- APG777-303 — Phase 3 clinical study of APG777 in adult and adolescent patients with atopic dermatitis.
- CorEvitas Atopic Dermatitis Drug Safety and Effectiveness Registry (AD-555).
- REACHED-NA — real-world study of patients with chronic hand eczema receiving delgocitinib.
Clinical Trials — Chronic Itch
Principal Investigator
- Randomized multicenter study evaluating oral difelikefalin for moderate-to-severe pruritus associated with notalgia paresthetica.
- Real-world research involving remibrutinib in chronic spontaneous urticaria, relevant to chronic itch investigation.
Clinical Trials — Psoriasis
Principal Investigator
- Phase 3 TAK-279 study in plaque psoriasis.
- CorEvitas Psoriasis Registry PSO-500
- CorEvitas Psoriasis Registry PSO-505
- CorEvitas Psoriasis Registry PSO-525
- ICOTYDE real-world dermatology research.
Research Involvement / Investigator Profile
- Dr. Nguyen has 80+ PubMed-indexed publications, serves as principal investigator in multiple multicenter clinical trials, participates on steering committees for emerging dermatologic therapies, and lectures internationally on dermatologic therapeutics.
- Dr. Nguyen is an active clinical investigator in inflammatory skin disease, with research spanning atopic dermatitis, chronic itch, chronic hand eczema, psoriasis and emerging targeted therapies. He serves as principal investigator for multicenter clinical trials, prospective registries and real-world studies involving both established and investigational treatments.

Trishann Nguyen MPAS, PA-C
Trishann Nguyen
Her care approach emphasizes clear communication, patient education, gentle skin care guidance, and long-term management strategies for conditions such as atopic dermatitis, hand eczema, contact dermatitis, pediatric eczema, and recurring itch-related concerns.
Whether helping a family manage a child’s eczema, supporting an adult with persistent hand irritation, or guiding a patient through long-term flare prevention, Trishann is committed to helping patients feel informed, supported, and confident in their skin care journey.
Credentials and Academic Appointments
Board Certification
- Board certified by the National Commission on Certification of Physician Assistants (NCCPA and licensed by the Texas Medical Board.
Academic Appointments and Leadership
- Sub-Investigator, Harrison Institute for Clinical Research.
- Dermatology Physician Assistant, Harrison Dermatology & Research Group.
Relevant Eczema / Itch / Psoriasis Expertise
- Specialized clinical interest in atopic dermatitis, eczema, chronic pruritus, prurigo nodularis, chronic hand eczema, and psoriasis.
- Sub-investigator in prospective atopic dermatitis, eczema, pruritus and psoriasis studies.
- Experience with biologics, JAK inhibitors, TYK2 inhibitors, IL-23 therapies, topical therapies and other emerging targeted treatments.
- Sub-investigator in both clinical trials and real-world effectiveness studies.
- Research experience involving adults and adolescents with inflammatory skin disease.
Research and Publications
Clinical Trials — Atopic Dermatitis / Eczema
Sub-Investigator
- ALIGN-AD — Performance of Advance AD-Tx to Align Appropriate Treatment for Patients Utilizing Systemic Treatment for Atopic Dermatitis.
- DETECT-AD — evaluation of a non-invasive device for early detection of flares in adults and adolescents with atopic dermatitis.
- APG777-303 — Phase 3 clinical study of APG777 in adult and adolescent patients with atopic dermatitis.
- CorEvitas Atopic Dermatitis Drug Safety and Effectiveness Registry (AD-555).
- REACHED-NA — real-world study of patients with chronic hand eczema receiving delgocitinib.
Clinical Trials — Chronic Itch
Sub-Investigator
- Randomized multicenter study evaluating oral difelikefalin for moderate-to-severe pruritus associated with notalgia paresthetica.
- Real-world research involving remibrutinib in chronic spontaneous urticaria, relevant to chronic itch investigation.
Clinical Trials — Psoriasis
Sub-Investigator
- Phase 3 TAK-279 study in plaque psoriasis.
- CorEvitas Psoriasis Registry PSO-500
- CorEvitas Psoriasis Registry PSO-505
- CorEvitas Psoriasis Registry PSO-525
- ICOTYDE real-world dermatology research.
Research Involvement / Investigator Profile
- Trishann Nguyen is an active clinical investigator in inflammatory skin disease, with research spanning atopic dermatitis, chronic itch, chronic hand eczema, psoriasis, and emerging targeted therapies. She serves as sub-investigator for multicenter clinical trials, prospective registries, and real-world studies involving both established and investigational treatments.
- Trishann Nguyen combines specialized clinical and surgical care with an active focus on hidradenitis suppurativa (HS). She collaborates on clinical studies evaluating emerging HS therapies, disease burden, and outcome measurement. She serves as a sub-investigator for multiple Phase 2 and Phase 3 clinical trials assessing new treatments for HS.
Find Relief for Eczema and Chronic Itch
Our Approach to Chronic Itch
Comprehensive Evaluation
Advanced Medical Therapies
Long-Term Skin Management
Trigger Identification
Expert Care That Understands Your Skin
At Texas Eczema & Itch Center, our providers are dedicated to helping patients find relief from persistent itching, recurring eczema flares, and inflammatory skin symptoms that can affect daily comfort and quality of life.
Our team provides specialized care for children and adults with atopic dermatitis, contact dermatitis, chronic hand eczema, dyshidrotic eczema, neurodermatitis, seborrheic dermatitis, stasis dermatitis, and other chronic itch concerns.
From thoughtful diagnosis and personalized skin care guidance to advanced therapies and ongoing support, our goal is to create a treatment plan that helps you feel more comfortable, informed, and confident in your skin.
Texas Eczema & Itch Center: Frequently Asked Questions
What conditions do your providers treat?
Our providers care for eczema and chronic itch-related conditions including atopic dermatitis, contact dermatitis, dyshidrotic eczema, chronic hand eczema, pediatric eczema, seborrheic dermatitis, neurodermatitis, stasis dermatitis, and related inflammatory skin concerns.
When should I see a dermatologist for eczema?
Consider scheduling an evaluation when symptoms are persistent, interfere with sleep or daily activities, repeatedly return, involve signs of infection, or do not improve with routine skin care.
Do you treat children with eczema?
Yes. Our providers offer age-appropriate evaluation and treatment guidance for infants, children, and teens experiencing eczema symptoms.
Can you help identify eczema triggers?
Depending on your symptoms and history, our providers may discuss possible irritants, allergens, products, environmental exposures, or other factors that may contribute to recurring flares.
What treatments are available for severe eczema?
Treatment options depend on the patient’s age, symptoms, affected areas, and disease severity. Our providers can discuss topical care, advanced therapies, and longer-term management options after evaluation.
Do you treat chronic itching without a visible rash?
Yes. Persistent itching can have many possible causes, and a dermatology evaluation can help determine appropriate next steps and treatment guidance.
Does insurance cover eczema treatment?
Coverage depends on your insurance plan and the services or medications involved. Contact our office and your insurance provider to confirm coverage details.
How do I schedule a consultation?
Use the request form below or contact our office to schedule an evaluation with a Texas Eczema & Itch Center provider.
Book a Consultation
Request an evaluation with the Texas Eczema & Itch Center team to discuss eczema or persistent itching.
