Itchy skin after sun exposure may be caused by solar dermatitis, photosensitive dermatitis and other diseases.
1. Solar dermatitis: is the local skin by strong sunlight exposure, the occurrence of acute phototoxic reaction, manifested as itching, redness, swelling, burning and other symptoms, lesions can generally subside within a few days, but also some of the symptoms of severe secondary infections.
2. photosensitive dermatitis: is due to allergy to ultraviolet radiation caused by skin diseases, mostly in the sun after exposure to the onset of the face, neck and neck before the V-shaped area, can be manifested in the exposure site of erythema, swelling, pimples, blisters, and other symptoms, often self-conscious itchy, and some patients can be subsided within 1 to 4 hours.
Itchy sunburned skin may also be caused by other factors, it is recommended that patients seek medical attention to clarify the cause of the symptomatic treatment.