Forehead long acne and red, hard, and painful, this situation is often nodular acne, clinical manifestations of inflammatory solid lesions, often in touch with pain, treatment: 1, to take some oral anti-inflammatory drugs, such as doxycycline, or minocycline with tanshinone capsule, etc. 2, you can apply anti-inflammatory ointment, such as fusidic acid cream, benzoyl peroxide gel, or isotretinoin erythromycin gel, etc. 3, recommended with some physical therapy, such as red and blue light irradiation therapy, or the use of traditional Chinese medicine ointment patch therapy for comprehensive treatment. Erythromycin isotretinoin gel, etc. 3, it is recommended with some physical therapy, such as red and blue light irradiation therapy, or the use of traditional Chinese medicine ointment paste treatment, for comprehensive treatment. It is recommended not to pick and squeeze, and early to the regular hospital dermatology consultation.