Whether to use closed needle or isotope treatment for keloid scarring depends on the size and thickness of the scar, and you need to choose the specific treatment method under the guidance of a professional doctor. Isotope therapy is mostly used in clinic isotope dressing, which is used externally on keloid scars to promote collagen regeneration and rearranging, so that the keloid tissues become softer and smaller; it is suitable for keloid scars with a small area and a thickness of less than 5mm. Keloid hyperplasia is mainly treated with glucocorticoid drugs such as trimethoprim injection or 5-fluorouracil injection. Due to the high recurrence rate of the closed injection method and the rebound phenomenon of a small number of patients, the closed injection method is mostly used for patients who are not effective in the treatment of topical medication or who are unsuitable for isotope therapy programs. All of the above treatments are recommended for patients to go to a regular medical institution and choose the appropriate treatment after consultation with a specialist.