Suddenly full of acne, may be due to excessive stress, often stay up late or consume spicy and stimulating food, can be dealt with through medication, phototherapy and adjuvant therapy, adjusting lifestyle habits and so on. 1. medication: you can use benzoyl peroxide gel, adapalene gel and other drugs externally on the acne area, and if infection occurs, you can use mupirocin ointment, erythromycin ointment and so on. Meanwhile, oral isotretinoin can be taken to cooperate with the treatment. 2. Phototherapy and auxiliary treatment: you can also use fractional laser, photodynamic therapy, red and blue light, intense pulsed light, etc., or take fruit acid peeling or salicylic acid chemical peeling can also promote acne subside. 3. Adjust the living habits: usually should try to avoid staying up late, light diet, avoid eating spicy and stimulating foods such as chili, raw onions, raw garlic, onions and so on. At the same time, patients should not use their hands to squeeze the acne, in order to prevent infection, pay attention to keep the skin clean. Suddenly full of pimples, it is recommended to timely to the regular hospital, under the guidance of professional doctors for treatment.