Dermatitis and Rashes

Preview this topic section

Preview the conditions. Plans unlock the full Step 1 details when you need them.

Free Biochemistry Free Microbiology Plans

Dermatitis and Rashes conditions

Acne Allergic contact dermatitis Atopic dermatitis (eczema) Erythema multiforme Erythema nodosum Lichen Planus Pityriasis rosea Pseudofolliculitis barbae Psoriasis Radiation dermatitis Rosacea Seborrheic dermatitis Stevens-Johnson syndrome (SJS) Stevens-Johnson Syndrome/Toxic Epidermal Necrolysis (SJS/TEN) Overlap Syndrome Toxic Epidermal Necrolysis (TEN) Urticaria

Medical Disclaimer: The content on this site is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. If you think you may be experiencing a medical emergency, call 911 or your local emergency number immediately. Always consult a licensed healthcare professional with questions about a medical condition.

Artificial Intelligence Use: Portions of this site’s content were generated or assisted by AI and reviewed by Erik Romano, MD; however, errors or omissions may occur.

Analytics Disclosure: If you allow analytics cookies, Doctogenic uses Google Analytics, Microsoft Application Insights, and Microsoft Clarity to understand site usage, diagnose issues, review heatmaps and session replay recordings, and improve the service on pages where those tools are enabled. Clarity is not enabled on account, purchase, billing, checkout, Stripe-related, or admin pages. You can change this choice through Cookie preferences.

USMLE® is a registered trademark of the Federation of State Medical Boards (FSMB) and the National Board of Medical Examiners (NBME). Doctogenic and Roscoe & Romano are not affiliated with, sponsored by, or endorsed by the USMLE, FSMB, or NBME. Neither FSMB nor NBME has reviewed or approved this content. "USMLE Step 1" and "USMLE Step 2 CK" are used only to identify the relevant examinations.

© 2026 Roscoe & Romano. All rights reserved.