Every summer, a large red rash on the body especially itchy may be insect bite reaction, solar dermatitis, prickly heat and other diseases.
1. Insect bite reaction: the allergen of the disease is the secretion of insects, due to the summer time mosquitoes, a little attention will be mosquitoes, bedbugs and other insects bite, and then cause skin allergic reaction, the local appearance of bright red air mass-like damage, and accompanied by itching.
2. Solar dermatitis: summer time ultraviolet radiation is strong, when the skin is exposed to ultraviolet radiation for a long time, it is easy to cause solar dermatitis. Typical symptoms of sun exposure will appear in a clear border of bright red rash, self-consciousness tingling sensation, burning sensation, itching sensation, so every year in the summer on the body with a large red rash especially itchy may be caused by this disease.
3. prickly heat: this disease is caused by the blockage of sweat ducts, and the environmental temperature is too hot, ionizing radiation, strenuous exercise and other factors. The main symptom is the skin pimples, surrounded by a red halo, red spots, there will be a burning sensation, itching, can be manifested in the summer every year on the body with a large red rash especially itchy.
It is recommended that patients with large itchy rashes every summer go to the hospital to clarify the specific causes and follow the doctor’s instructions for symptomatic treatment.