The lesions in the photo are typical of erythema multiforme or possibly a severe allergic reaction/dermatitis, though other diagnoses like psoriasis or an infection should also be considered.
1. Clinical Presentation: The skin exhibits well‑defined erythematous (red) plaques and patches with a raised, sometimes blistered appearance, distributed over the neck and upper chest. Some lesions show central clearing or crusting.
2. Possible Causes:
– Erythema multiforme: Often triggered by infections (e.g., herpes simplex) or medications. It presents with target‑like lesions.
– Allergic dermatitis: Contact with an irritant or allergen can cause similar red, itchy plaques.
– Psoriasis: Chronic condition with thick, red, scaly patches; less acute than the lesions shown.
3. Evaluation: Accurate diagnosis requires a medical professional who may perform a physical exam, patient history, and possibly a skin biopsy.
4. Management: Treatment depends on the cause and may include topical corticosteroids, antihistamines for itching, or addressing any underlying infection or medication issue. Severe cases need medical attention to prevent progression.
5. When to Seek Care: If you notice sudden onset of such lesions, especially with discomfort, blistering, or spreading, consult a dermatologist or healthcare provider promptly for proper assessment and therapy.
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