Acne hyperplasia bumps, also referred to as raised scars due to acne, can be flattened in terms of treatment by laser treatment, cryotherapy, and medication. 1. Laser treatment. The high-intensity heat produced by the laser therapy device can promote the regeneration of collagen and elastic fiber under the skin, so as to achieve the purpose of removing scars. 2. Cryotherapy. The use of liquid nitrogen’s extremely low temperature directly on the local skin tissue caused by frostbite, and make it necrotic shedding, which is also a more commonly used method of removing scars. 3. Medication. Injecting glucocorticoid drugs (tretinoin) into the inner part of the scar tissue can inhibit the growth of the scars, make the scars shrink, and encourage them to become flat. As each person has different requirements for beauty, there will be some differences in the choice of treatment, and the specific situation can be analyzed after an interview with a doctor.