Back long red bumps itchy may be mosquito bites, folliculitis, urticaria and other causes, treatment should be based on the cause of specific treatment. 1. Mosquito bites: especially in summer, mosquitoes are more, if wearing dark-colored clothes and in the evening, it is very easy to cause mosquito bites, will cause red bumps itchy. Can not be excessive scratching, can be applied locally mometasone cream to stop itching. 2. Folliculitis: due to the back of sebaceous gland secretion, easy to block the pores. Coupled with long-term mental stress or poor work and rest, leading to a decline in the body’s immunity, bacterial invasion, and folliculitis. Can use antibiotics such as erythromycin if and so on treatment. 3. Urticaria: It is a kind of limited edema reaction, caused by the dilation of small blood vessels in the skin and mucous membranes. And in the skin can present red bumps very itchy. Treatment should be selected antihistamines, such as loratadine tablets. If the above symptoms and no relief, we should consult a doctor in time, after clarifying the cause of the disease under the guidance of a doctor to standardize the treatment, the use of drugs need to follow the doctor’s instructions.