A lot of pimples on forehead may be related to acne. You need to pay attention to the general care, according to the condition of the doctor under the guidance of the choice of drug treatment. 1. General care: avoid squeezing and scratching the forehead with many pimples, standardize your daily routine, and avoid a diet high in sugar and spicy food. 2. Medication: Mild acne is mainly treated with topical medication, including retinoic acid cream, fusidic acid cream, benzoyl peroxide gel, adapalene gel and other medications; severe acne needs to be combined with oral medication on the basis of topical medication, such as doxycycline, minocycline, isotretinoin and so on. A lot of acne on the forehead, you should go to the hospital in time, under the guidance of the doctor for treatment, the use of drugs need to follow the doctor’s instructions.