Itchy red bumps in summer may be due to summer dermatitis, prickly heat, insect bite dermatitis and other factors, need to clarify the cause of the symptomatic treatment, common therapeutic drugs such as glycerine lotion, peppermint, cetirizine and so on. 1. Summer dermatitis: a seasonal, inflammatory skin disease caused by high temperatures in the summer, manifested as a large red spot on the skin, with papules, pimples, often accompanied by itching, after the weather is cool, the lesions can quickly subside. Can be used externally 1% phenol glycerite lotion, 1% mint glycerite lotion and other medications such as topical application, if necessary, oral cetirizine, imipramine extended-release tablets and other medications. 2. prickly heat: a superficial, inflammatory skin disease common in summer, can be manifested as pinhead-sized papules, papules, surrounded by a red halo, more than a batch of appearances, the patient may have burning, itching sensation. In general, the skin for cooling, drying and other treatments, the symptoms can be gradually relieved, if necessary, can be used externally with peppermint, glycerite lotion treatment. 3. Insect bite dermatitis: summer is easy to be mosquitoes, mites and other insects bite, resulting in the occurrence of skin allergies and inflammatory reactions, manifested in the sudden occurrence of pea to the size of a finger doughnut erythema, often accompanied by a huge itch. You can use Dinaid cream, hydrocortisone butyrate cream to apply locally, and when the itching is severe, you can take antihistamines such as Benadryl and Cetirizine Hydrochloride tablets orally. Itchy red bumps on the body in the summer may also be due to other factors, it is recommended that patients seek medical attention in a timely manner in order to clarify the cause of the disease, standardized treatment under the guidance of the doctor, to avoid private medication, so as not to delay the condition.