Guide — Med-Surg
Psoriasis & Eczema Nursing Care
Two chronic, relapsing skin diseases that patients live with for decades. Psoriasis is overgrowth — skin cells racing to the surface as silvery plaques; eczema is a broken barrier caught in an itch-scratch cycle. Neither is curable, both are manageable, and the nursing work is mostly teaching and the psychosocial toll.
9 min read · Med-Surg
Educational use only. Topical potencies, phototherapy, systemic agents, and biologics follow dermatology and provider orders. Biologics and immunosuppressants carry infection-screening requirements. This material supports nursing education and exam review. It is not medical advice and is not a substitute for clinical judgment, institutional policy, or medical direction. Always follow facility protocols and current provider orders.
Overview
Psoriasis is an immune-mediated disease of accelerated skin turnover — keratinocytes mature in days instead of weeks, piling up as well-defined plaques with silvery scale. It’s chronic, relapsing, and a systemic condition: associated with psoriatic arthritis, cardiovascular and metabolic disease, and depression.
Atopic dermatitis (eczema) is a chronic, intensely itchy inflammatory condition rooted in a defective skin barrier. It often begins in childhood and runs with the atopic triad (eczema, asthma, allergic rhinitis). The central problem is the itch-scratch cycle: scratching damages the barrier, which worsens inflammation and itch.
Key Concepts
Psoriasis — look and signs
Well-demarcated erythematous plaques with thick silvery-white scale on extensor surfaces (elbows, knees), scalp, and the sacrum, often with nail pitting. Auspitz sign — pinpoint bleeding when scale is removed — and the Koebner phenomenon — new plaques at sites of skin trauma — are classic. Triggers include stress, infection (strep → guttate psoriasis), skin injury, cold/dry weather, and certain drugs (beta-blockers, lithium).
Eczema — look and distribution
Ill-defined, dry, red, intensely itchy patches — weepy and crusted when acute, thickened and lichenified when chronic. Distribution by age: cheeks/scalp in infants, flexural areas (antecubital and popliteal folds) in older children and adults. Flares with allergens, irritants (soaps, wool, sweat), dry air, and stress; prone to secondary infection (impetiginized eczema, eczema herpeticum).
Topical therapy is the backbone
Topical corticosteroids (potency matched to site and severity), emollients/moisturizers (the foundation — applied generously, especially after bathing), vitamin D analogs and calcineurin inhibitors for psoriasis/eczema respectively, coal tar, and phototherapy. Application technique and amount matter as much as the prescription.
Systemic and biologic therapy
Moderate-to-severe psoriasis may use methotrexate, cyclosporine, or biologics (TNF, IL-17, IL-23 inhibitors) — highly effective but immunosuppressive, requiring TB and infection screening and infection vigilance. Severe eczema may use dupilumab or systemic immunomodulators.
Assessment Findings
Describe the lesions precisely (plaques with silvery scale vs ill-defined itchy patches), their distribution (extensor/scalp/nails for psoriasis; flexural for eczema), and signs of secondary infection (oozing, honey crust, pustules, fever — and the painful punched-out vesicles of eczema herpeticum, an emergency). Assess itch severity, sleep disruption, and the psychosocial impact — these diseases are visible and stigmatizing. For psoriasis, screen for joint pain (psoriatic arthritis) and cardiometabolic risk; before biologics, confirm infection screening is done.
Nursing Priorities
Break the itch-scratch cycle
Aggressive moisturization (thick emollients within minutes of bathing to seal in water), lukewarm not hot baths, gentle fragrance-free cleansers, antihistamines for sleep if ordered, short nails, and cool compresses. Treating itch is treating the disease.
Teach correct topical use
Apply topical steroids thinly to active areas for the prescribed duration (overuse thins skin), emollients liberally everywhere, and in the right order. Demonstrate the “fingertip unit” concept and where high- vs low-potency steroids go (never strong steroids on the face/folds without direction).
Guard the immunosuppressed patient
On biologics/systemics: monitor for infection, ensure screening and vaccinations are current (avoid live vaccines on immunosuppression), and teach when to hold the drug and call.
Address the whole person
Screen for depression and social withdrawal, identify and reduce triggers, and connect to support resources. Chronic visible skin disease carries a heavy psychological load that affects adherence.
Therapeutic Communication Considerations
These conditions are visible, often itchy or painful, and frequently met with others’ fear that they’re contagious — reassure plainly that psoriasis and eczema are not catching, and acknowledge the embarrassment and frustration of a relapsing disease. Set honest expectations: the goal is control, not cure, and flares aren’t failures. Partner on trigger identification rather than dictating, and validate the real toll on sleep, intimacy, and mood — adherence to a daily skin routine depends on the patient feeling understood, not lectured.
Patient & Family Education
The daily routine is the treatment: moisturize generously and often (especially right after bathing), use lukewarm water and gentle cleansers, apply prescribed topicals as directed, and don’t scratch. Teach trigger avoidance (known irritants/allergens, stress management, avoiding skin trauma for psoriasis), and the signs of infection to report (increasing pain, pus, honey crust, fever; painful clustered vesicles). For biologics, cover infection precautions, lab/screening follow-up, and not stopping abruptly. Reinforce that psoriasis is systemic — keep up with joint symptoms and cardiometabolic health — and that consistent skin care prevents most flares.
NCLEX Pearls
- ✦Psoriasis = silvery scaly plaques on EXTENSOR surfaces + Auspitz sign + Koebner phenomenon; it’s systemic (psoriatic arthritis, cardiometabolic risk).
- ✦Eczema = intensely itchy FLEXURAL rash + atopic triad (eczema, asthma, allergic rhinitis); the itch-scratch cycle drives it.
- ✦Moisturizers are first-line and foundational — apply right after bathing to lock in water; treat the itch to treat the disease.
- ✦Biologics/systemics immunosuppress — screen for TB/infection, watch for infection, avoid live vaccines.
- ✦Neither is contagious; both are chronic and relapsing — the goal is control, and the psychosocial impact is real.
Related Resources
Standards & sources
Fact-checked Jun 21, 2026This page is written to align with Academy of Medical-Surgical Nurses (AMSN) · Current medical-surgical nursing standards. It is an educational summary, not a citation of any single document — always verify specific doses, values, and protocols against current guidelines and your facility policy. How we source content →