Why does your face itch and break out for no reason?

The inexplicable itchy bumps on the face may be caused by atopic dermatitis, insect bite dermatitis, eczema and other causes.
1. Allergic dermatitis: inexplicable itchy bumps on the face may be caused by atopic dermatitis, when the human body through the skin mucous membrane contact, inhalation, ingestion and other channels so that the allergen into the human body, may be caused by an abnormal immune response, resulting in the appearance of erythema on the face, edema, blisters, pimples and other lesions, and accompanied by itching, stinging and other symptoms.
2. Insect bite dermatitis: it is a localized skin allergic and inflammatory reaction that occurs after the skin is bitten by insects such as mosquitoes, mites, fleas, etc., which can cause bright red, windswept pimples on the facial skin, accompanied by intense itching and other symptoms.
3. Eczema: a common inflammatory skin disease, may be related to the environment, local stimuli, immune factors and other reasons, will also cause facial skin red spots, papules, accompanied by itching, as well as oozing, crusting and other symptoms.
Face inexplicably itchy pimples may have other reasons, it is recommended to timely to the hospital, to clarify the cause, follow the doctor’s instructions for treatment.