There is no “fastest” way to relieve red bumps from skin allergies. Clinical often identify the cause of the disease to take treatment, such as contact dermatitis, urticaria and so on. 1. Contact dermatitis: the onset of the disease is more acute, lesions are more limited to the contact area, manifested as a clear erythema, papules and pimples, often conscious itching or burning pain. To avoid contact with allergens. Topical drugs: acute period of erythema obvious topical glycerite lotion, oozing with 3% boric acid solution cold wet compresses; subacute period of a small amount of oozing topical glucocorticosteroid paste or zinc oxide oil, no oozing with glucocorticosteroid creams; there are infections with the addition of topical antibiotics, such as mupirocin and so on. Internal drugs: antihistamines, such as loratadine; or glucocorticoids, such as prednisone. 2. Urticaria: can be caused by external stimuli, viruses, autoimmune and other factors, can appear itchy skin, red or skin-colored doughnuts and other symptoms. Clinical often use antihistamines, such as cetirizine, loratadine, fexofenadine, ketotifen, etc., can be combined with vitamin C, calcium and other treatments. Those caused by infectious factors can choose appropriate antibiotic treatment, such as penicillin, cephalosporin. Daily attention should be paid to avoid scratching the skin to prevent infection; avoid contact with allergens; avoid hot and cold environmental stimulation, emotional excitement, strenuous exercise; pay attention to light diet, choose comfortable, cotton clothing.