<s>[INST] sometimes i get allergy on my face. This only happens in the morning when i wake up. It happens once in a while not everyday. Back of my neck and some parts of the face gets swallon and red. and there is burning sensation there. I would really appreciate your help. [/INST] hi , you are talking about urticarial rashes, it can be caused by several factors, first of all you should get your total and differential count done to rule out eosinophillia, get your serum uric acid level checked, skin test for allergy including patch test, complete pannel allergen test and test for atopy with foods or othher agents.for the time being you can take some anti allergic like cetrizine or others and then you can meet a dermatologist for further examination and you should also get your respiratory system examined during the attack. wish you all the best. </s>