hi, you might be suffering from cholinergic urticaria also known as autologus sweat hypersensitivity.for its management you should avoid hot environment, heavy exercise , hot bath , sun exposure as much as possible. you should stay in AC room if possible to avoid sweating, rather you can use colt water spray or apply wet towel regularly to avoid sweating.you should go for total and differential count of white blood cells for ruling out basophilia.you can use antihistaminic like levocetrizine or loratidine or zileuton an antileukotrenes.. steroidal drugs and omalizumab an anti IgE therapy can be initiated but for that you should consult an immunologist. its other mode of treatment include desensitisation, steroid pulse therapy , danazol and propranol but consult a physician for their proper application. thanks for consulting HCM.