The main ingredient of Kangxin Liquid is the dried body extract of the American cockroach, which can be used topically or taken orally. The price ranges from about ten to forty dollars. Due to the different manufacturers, the specifications of the drug are different, and there are different packages of 50ml, 90ml, 100ml, 120ml, etc., so the price is different. The specific price should go to the local hospital or pharmacy to do a consultation when buying, as long as the regular manufacturer production, are safe to buy. It is a good wound repair function for the treatment of gastroduodenal ulcers, ulcerative colitis, oral ulcers and burns and other wound-related diseases. If vulvar ulcer is accompanied by vulvar redness and swelling, topical application of Rehabin Liquid can effectively promote the healing of the ulcer surface and improve the symptoms of redness, swelling and pain. It is a light yellow liquid with fishy odor and sweet taste.