Hi, Your symptoms seem to be clearly due to sun exposure. Let me mention few conditions that mimic sunburns but with thorough clinical examination, we can arrive at a specific diagnosis. It could be: Acute Intermittent Porphyria Allergic Contact Dermatitis Atopic Dermatitis Cellulitis Chemical Burns Drug-Induced Photosensitivity Emergent Management of Thermal Burns Exfoliative Dermatitis Heat Stroke Systemic Lupus Erythematosus (SLE) Xeroderma Pigmentosum The treatment of sun burns is that pain and inflammation can be reduced by using NSAIDs. Topical steroids are better avoided. Emollients like aloe vera and calamine lotion are known to decrease the symptoms. Cold soaks with water or burrow solution (aluminum acetate) are useful. Fluid replacement in case of sever erythema and concomitant fluid losses. Usage of a sunscreen with adequate or high SPF (sun protection factor) is recommended. Apply at least 30 minutes prior to sun exposure, and reapply every 2-3 hours or after swimming, sweating, or toweling off. Avoid sun exposure from 10am to 4 pm. As your dermatologist suspects your condition to be atopic dermatitis, I would like to mention treatment of atopic dermatitis too, which is moisturization in atopic dermatitis. Depending on the climate, patients usually benefit from 5-minute, lukewarm baths followed by the application of a moisturizer such as white petrolatum. Frequent baths with the addition of emulsifying oils (1 capful added to lukewarm bath water) for 5-10 minutes hydrate the skin. Apply an emollient (moisturizer) such as petrolatum or Aquaphor all over the body while wet, to seal in moisture and allow water to be absorbed. Topical steroids in atopic dermatitis: Topical steroids are currently the mainstay of treatment in association with moisturization. Initial therapy consists of hydrocortisone 1% powder in an ointment base applied 2 times daily. A mid--strength steroid ointment (triamcinolone or betamethasone valerate) is applied 2 times daily to lesions on the trunk until the eczematous lesions clear. Steroids are discontinued when lesions disappear and are resumed when new patches arise. Immunomodulators like Tacrolimus 0.1% ointment. omalizumab, dupilumab are latest drugs, crisaborole and topical 2% ointment. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Pallavi M., Anesthesiologist