Hives also called urticaria frequently occur following an infection or as a result of an allergic reaction such as to medication, insect bites, or food. Psychological stress, cold temperature, or vibration may also be a trigger.In half of cases the cause remains unknown.Risk factors include having conditions such as hay fever or asthma.Diagnosis is typically based on the appearance. Patch testing may be useful to determine the allergy. Prevention is by avoiding whatever it is that causes the condition.Treatment is typically with antihistamines such as diphenhydramine and ranitidine. In severe cases, corticosteroids or leukotriene inhibitors may also be used. Keeping the environmental temperature cool is also useful.For cases that last more than six weeks immunosuppressants such as ciclosporin may be used. So send me ur pic and consult me in online chat section for proper diagnosis and treatment.

You are suffering from cholinergic urticaria.. Medicine available for good improvement......As the treatment varies depending on the severity... Send photos of the affected area, for accurate diagnosis and treatment.