The sun light and heat causes a raised rash all
When this happens I turn red and most time I will pass out.
I have seen several doctor and panel of blood work. I have seen dermatologist and had skin biopsy done. No answers
I can take a too warm shower and pass out. I live in the dark and cold house. Please help
Cholinergic urticaria and its management
Hello and welcome to ask a doctor service. I have viewed the images and gone through your query and here is my advice.
You seem to have cholinergic urticaria. It is a type of physical urticaria and it is chronic. Stimuli which cause changes in core body temperature like a hot shower, exercise, spicy food, emotions like anger, guilt etc can trigger a reaction characterized by monomorohic, itchy welts/ hives. Apart from avoiding triggering factors like I mentioned above treatment of cholinergic urticaria is mostly symptomatic and consists of oral antihistamines like cetrizine, loratadine, fexofenadine etc. Topically you may use a soothing lotion e.g calamine lotion.
Hope I have answered your query. Let me know if you need any more assistance.