Hard bags on the chin are considered to be acne, folliculitis, sebaceous cysts, etc., which can be removed through medication and surgery. 1. Acne: Increased secretion of androgens and sebaceous glands during puberty can easily cause acne, which can be eliminated by applying retinoids, more commonly used are tazarotene and adapalene. 2. Boils: Skin infections can be caused by follicle infections, if not treated in time may lead to boils, appearing larger hard packs, you can apply erythromycin ointment, Pilocarpine ointment, etc., if there is pus, if necessary, need to be incised and drained. 3. Sebaceous cysts: sebaceous cysts and sebaceous stagnation have a relationship, is a benign skin lesion, the treatment of this disease is mainly surgical excision, if there is an infection, it should be the first medicine to control the infection, inflammation elimination before surgery. There may be other reasons for the hard bags on the chin, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, give targeted treatment or treatment. All of the above drugs should be used in accordance with medical advice.