Acne on the forehead may be related to greasy skin and clogged pores, as well as the increased secretion of male hormones during adolescence. Wrinkles on the forehead are normal, and their depth is an individual characteristic. It is recommended not to pay attention to them. Keep your face clean at ordinary times and do not accumulate oil and dirt. Clogged pores will aggravate the symptoms. If a pustule appears, it can only be squeezed when it is large. After the pustule is squeezed, perform local disinfection to avoid infection. In terms of diet, avoid greasy, spicy, and irritating foods, drink more water, and eat more vegetables and fruits. If it is serious, you can go to the hospital for examination, take antibiotics according to the doctor's advice, and you can also use surgery. You should pay attention to maintaining a peaceful mind at ordinary times and avoid excessive mental pressure. If you have negative emotions such as anxiety, depression, fear, etc., you can find a psychologist for guidance.