Why to spring skin is allergic

Why is it easy to be allergic to spring? It is called seasonal contact dermatitis in medicine. It is a seasonal recurrent contact dermatitis caused by pollen. It is good to occur in spring and autumn. Pollen antigen is an important pathogenic factor for this disease. In spring, pollen is more abundant, and patients are prone to allergic reactions to pollen exposed. It is characterized by mild erythema and edema on the face and neck. There may be red papules the size of rice grains on the surface. It is normally accompanied by obvious itching. It can occur repeatedly in spring and autumn every year, and it can also subside by itself. Laboratory examination shows that the total serum IgE level can be increased, and the pollen patch test is positive. The treatment for it mainly lies in preventing incentives and giving anti-allergic drugs for symptomatic treatment.