Causes of redness and bumps on the face include acne, eczema, folliculitis, insect bites, etc. Treatment includes medication. 1. Acne: Acne is an infectious disease of the skin caused by the infection of the bacterium Acinetobacter acnes, which can be treated with topical anti-acne treatments such as adapalene gel. 2. Eczema: Eczema is an inflammation of the skin caused by a variety of internal and external factors, and can be given anti-inflammatory treatment with glucocorticoid creams such as Denadyl. 3. Folliculitis: Folliculitis is an inflammation of the hair follicles caused by bacterial or fungal infection, which can be treated with fusidic acid cream or ketoconazole cream. 4. Mosquito bites: if the mosquito bites caused by bumps, generally do not need special treatment, if especially itchy can be given glycerine lotion coated with anti-itch treatment. Finally, there are more reasons for the redness of the face with small bumps, skin barrier damage may also appear this phenomenon, please consult a doctor in a timely manner, the above drugs need to follow the doctor’s instructions.