Berberine tablets, also known as berberine hydrochloride, is mainly used to treat diarrhea (diarrhea), because of the anti-inflammatory effect, but also can play the role of astringent, put dry, so it is also commonly used in dermatology topical treatment. For example, eczema after scratching the wound will have a lot of exudate, also known as the acute or subacute stage of eczema, its surface has a lot of yellow exudate and the wound does not heal, always flow yellow water when the need for cold wet compresses. For blistering disease, the dermatology department itself will have herpetic dermatosis or even have skin erosion surface, that is, the wound does not heal. There are also mosquito bites and even rotten feet can choose to do wet compresses with Huanglianxin tablets.