The face full of pimples and red and itchy may be caused by folliculitis, acne, contact dermatitis and other diseases, need to choose different drugs according to the cause of treatment. 1. Folliculitis: face full of pimples and red and itchy may be caused by folliculitis, folliculitis is generally based on antibacterial drug treatment, can be used externally fusidic acid cream, mupirocin ointment, etc., if it is clear that the fungal infections, can be used externally to antifungal drugs, such as terbinafine, ketoconazole and other drugs treatment. 2. Acne: If acne causes red and itchy pimples on the face, topical adapalene gel, benzoyl peroxide, fusidic acid ointment, etc. can be given, and oral isotretinoin, doxycycline and other drugs can be combined if necessary. 3. Contact dermatitis: face full of pimples and red and itchy and may be contact dermatitis, should actively search for the cause of the disease, out of contact with the material, can be used locally calcium-modulated phosphatase inhibitors such as pimecrolimus, tacrolimus ointment anti-inflammatory, anti-itch, can also be taken orally antihistamines, such as cetirizine, chlortetracycline, and so on. The face is full of acne and red and itchy advice to the hospital in a timely manner, a clear cause, under the guidance of the doctor to carry out active treatment, do not unauthorized use of drugs to avoid adverse reactions.