<s>[INST] I had a welt-like rash on my upper arms, shoulders and back last night after dinner. It spread rapidly and moved around those parts of my body. My wrists and hands were also itchy with bumps. This morning I woke up with a sore throat and runny nose, like I had a cold. What could it be? [/INST] Hi, It may be allergic urticaria and allergic rhinitis. Consult the dermatologist for the perfect diagnosis and proper treatment. I would recommend you to take antihistaminics like bepotastine under supervision of your doctor. Avoid contact with suspected allergens and also avoid dietary stuff which may precipitate the disease. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Ilyas Patel, Dermatologist </s>