Itchy red bumps on the calves may be due to keratosis pilaris, mosquito bites, contact dermatitis and other factors, you can choose to emollient application, glycerite lotion application, oral antihistamine treatment to relieve. 1. Keratosis pilaris: this is a chronic follicular skin disease, consider and genetic factors, vitamin A deficiency, etc., generally do not need special treatment, you can apply emollients to keep the skin moisturized, to relieve the local dryness and itching phenomenon. 2. Mosquito bites: red bumps on the calf with itching phenomenon, also does not exclude and mosquito bites factors related to the topical glycerine lotion can be applied, can relieve the local itching is conducive to the recession of the symptoms of the bumps. 3. contact dermatitis: red bumps on the calf with itching, may also be related to contact dermatitis, especially in contact with allergens will cause the above symptoms, can be used externally with glycerine lotion, with oral loratadine, cetirizine and other antihistamines to improve the patient’s symptoms. It is recommended that patients with red bumps on the calves with itching symptoms, and cooperate with the doctor to do further examination, to determine the cause and then do the treatment, can not blindly use drugs.