<s>[INST] Hi. I m 31years old. I have goose bumps like rash on my chest , shoulders, back, face, arms for the last 3 days.its itchy also. I had some chocolate cake on saturday in the evening I notice rash on my chest..on sunday I had some cake again after two hours my arms started itching I notice some more rash on my back, shoulders today even on my face..I never had any type of rash before..I would like to ask if I could be allergic to some kind of food?as it never happened to me before..and I havent got any contact with any plants as I was at home all weekend.. [/INST] Hello, Welcome to Chat Doctor, You seem to be suffering from Acute urticaria. It is characterized by itchy red or skin colored raised wheals which is transient. The most common cause of acute urticaria is food. Seafood, meat, poultry, egg, milk, apples, brinjal, strawberry, coloring agents etc. are commonly implicated. It is subjective, and any food can cause it. Other common causes are medicines, infections, insect bites etc. In your case Cake is number one on the suspected trigger list. Avoid eating it. You may take antihistamine like Ben Chat Doctor. Hope this helped, Take care. </s>