What should you know about onset of Stevens-Johnson syndrome?

This is a rare, serious reaction involving the skin and mucous membranes. Early symptoms can resemble an infection: fever, tiredness, sore throat, cough, or burning eyes. A tender red or dusky rash may then spread, with blisters, peeling, or raw areas. Mouth sores can make drinking difficult; eye symptoms may include pain, redness, light sensitivity, or discharge. A new medicine is a possible trigger, but the timing and cause need medical assessment. A drug rash may be less severe, so appearance alone cannot confirm the diagnosis.

Treat suspected Stevens-Johnson syndrome as an emergency. Go to an emergency department immediately, especially when skin pain, blistering, peeling, mouth sores, or eye symptoms are developing. Take the medicine packets or a current medication list, including recent antibiotics, pain medicines, seizure medicines, or supplements. Do not restart a suspected new medicine unless the treating team specifically instructs you. Avoid applying creams or breaking blisters while waiting for assessment. Hospital care may include fluids, wound support, pain relief, eye review, and specialist monitoring. Oral Corticosteroid Treatment may be considered by specialists in selected situations, but it is not a self-treatment.

Seek emergency help now for a rapidly spreading painful rash, blisters, peeling skin, sores on the lips or inside the mouth, painful swallowing, eye pain, genital sores, breathing difficulty, faintness, or inability to drink. Symptoms can worsen quickly, so do not wait for a routine appointment or rely on an online image comparison.

Could a recent medicine have triggered this reaction? Which medicines should be recorded as suspected allergies? Do my eyes, mouth, or other mucosal areas need specialist review? What should I do if a similar rash appears again?