Boiled Fish Maw is used for internal use by decocting with water, and for external use by decocting with water and fumigating. Fishwort is the name of a traditional Chinese medicine which is pungent in flavor and slightly cold in nature, and has the effect of clearing heat and detoxifying the body (removing heat and toxicity from the body), and is able to eliminate carbuncles and drain pus, as well as diuretic and diaphoretic (improving the problem of dribbling and small amount of urine which is not passable). It can cure lung carbuncle and chest pain, heat poison carbuncle, and can also treat wheezing, hot diarrhea and other diseases. Fishwort is used internally by decoction or pounding the juice, externally by pounding the compress or decoction and fumigation. Clinically, Fishweed is combined with smallpox pollen, cypress leaves, decoction water for internal use, can cure carbuncle spitting pus. Adverse effects of fishy grass is not exact, negative external ulcer patients are prohibited from using, need to pay attention to not eat more, long time to eat. If you need to use the drug fishweed, should be a professional Chinese doctor to identify the evidence to guide the use, do not buy and use on their own, so as not to delay the condition.