Pimples are acne. Acne on forehead can usually be treated by general treatment, medication, physical therapy and other methods. 1. General treatment: Improve the living habits in time, take a light diet, avoid spicy and stimulating food intake; pay attention to rest, avoid staying up late; should use warm water or mild toiletries to wash every day, to reduce the stimulation of the local skin. 2. Medication: Under the guidance of a professional physician, you can choose to use local topical retinoic acid cream, mupirocin cream, fusidic acid cream, etc. Patients with more serious symptoms can choose to take oral isotretinoin soft capsule, amoxicillin capsule, doxycycline tablets and other medications for treatment. 3. Physical therapy: If the symptoms recur or the drug treatment has no obvious effect, you can carry out photodynamic therapy, laser therapy and other physical methods of treatment. In the treatment, need to be under the guidance of a professional physician combined with their own physical condition for targeted treatment, not blindly use drugs, so as to avoid aggravation of the condition.