Scars can be treated with isotope therapy, radiotherapy, medication, and scar care after surgical excision and re-growth. Generally, scar hyperplasia will rarely re-grow after surgical excision, but if you have a scarred body or improper post-surgical care, you will be prone to re-growth and should consider the following ways to improve the condition: 1. Isotope therapy: Isotope therapy can stimulate collagen regeneration through electric radiation, which can lighten the effect of scars. 2. Radiotherapy: After surgical excision of scar growth, in order to prevent and inhibit scar regeneration, you can receive radiotherapy under the advice of your doctor. However, it should be noted that radiotherapy is not recommended if you are planning to have a baby. 3. Drugs: In the early stage of scar hyperplasia, you can choose to apply topical drugs, such as cumquat ointment, silicone gel and so on, or injected compound betamethasone, prednisolone and other hormonal drugs under the advice of the doctor. In addition to the above treatments, in order to prevent scar regeneration, you should also pay attention to a light diet and avoid direct sunlight on the scars.