Drug Dermatitis (Drug Eruption)

Drug eruption (dermatitis medicamentosa) is adverse cutaneous reaction to systemic medication, with morbilliform/urticarial/fixed/licheniform/psoriasiform/photosensitive/pustular/vasculitic patterns. Treatment: identify/stop culprit drug; supportive care (emollients, hydration); topical corticosteroids; oral antihistamines; systemic steroids for severe; hospitalize for SJS/TEN/DRESS/AGEP/anaphylaxis (burn-unit care for TEN); document drug allergy; avoid cross-reactivity; follow-up.

Common Symptoms

Morbilliform/urticarial/fixed/licheniform rash; pruritus; by drug

Causes and Pathogenesis

Immune-mediated or direct drug toxicity causes diverse cutaneous reactions.

Treatment

Stop drug; emollients; topical/systemic steroids; antihistamines; monitor severe

Preventive Measures

Document allergies; careful prescribing; monitor new drugs.

Department to Visit

It is recommended to visit the Dermatology/Allergy/Emergency department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.