Itchy legs in summer the more you scratch the more itchy may be due to mosquito bites, urticaria or contact allergic dermatitis and other causes.
1. Mosquito bites: most cases are related to mosquito bites, commonly found in mosquitoes, mites, lice, fleas, etc. The secretion injected into the skin during insect bites is the sensitizer of the disease. Mainly occurs in the exposed parts, the local will appear erythema, blisters, and accompanied by obvious itching, if it occurs in the calf, the more you scratch the more itchy.
2. Urticaria: It is a kind of skin allergy allergic reaction disease, usually due to infection, skin contact and other reasons, the patient will appear in the location of irregular air masses, erythema, accompanied by itching, the more you scratch the more itchy.
3. Contact allergic dermatitis: mostly caused by contact with dust, pollen and other allergens, patients may have localized itching, and the more you scratch, the more itchy, away from the allergens can be improved.
People feel itchy and scratching, followed by scratching to produce pain; and then, the body due to the emergence of pain signals to release serotonin to control pain, but these serotonin in the inhibition of pain at the same time, along the way to activate the neurons in the spinal cord conveying itching signals, so that itching is more intense, intense itching will trigger a new round of scratching and pain, into the scratch – itch cycle.
Patients who experience itchy legs in the summer that get itchier the more they scratch should seek timely medical examination and treatment under the guidance of a doctor.