The hard lumps left after squeezing acne may be inflammatory papules. It can be treated with topical medication, oral medication and, if necessary, through physical therapy under the guidance of a doctor. 1. Topical medication: If the nodules left after squeezing acne are mildly inflamed, it is recommended to give retinoic acid ointment and adapalene gel for topical application under the guidance of a doctor, which has the effect of antikeratinization and antikeratinization. 2. Oral medication: if necessary, with oral isotretinoin capsules, viamine ester capsules, has the effect of softening the cortex, can help improve the symptoms. 3. Physical therapy: Physical therapy, such as helium-neon laser, red and blue light pulsed laser on the local irradiation, can promote the hard lumps subside. If the hard lumps are larger and have formed nodules and scarring, photodynamic therapy can be used to promote the absorption of nodules. With acne on the skin, it is recommended not to squeeze with hands to avoid infection. If necessary, go to the dermatology department of the hospital and give appropriate treatment under the guidance of the doctor to promote the hard lumps to subside.