Longquai has the effects of clearing heat and removing toxins (removing heat, poison and evil Qi from the body), promoting blood circulation and reducing swelling, and can be used to treat sores, boils, swelling and pain, urinary tract infections, and dysuria (unruly urination). Longquan is a Chinese medicine commonly used in Chinese medicine clinics, bitter, slightly sweet, cold in nature; a small poison, via. Longquai has good therapeutic and ameliorative effects on carbuncle furuncles (sores occurring on the limbs or face, small in shape with deep roots, as hard as nails), dengtoxin (an acute infectious disease in which the skin is seen to be reddened as if it were coated with pigment), pemphigus, bruises, and snake bites. It should be noted that it is forbidden for people with weak spleen and stomach; this drug has small poison, prolonged intake or overdose can cause leukocyte drop and liver function damage, and can cause symptoms such as cold (fear of cold), night sweating (sweating abnormally after going to sleep, and sweating stops after waking up), abdominal pain and dysentery, and even coma, so it is not advisable to take it for a long period of time or overdose. It is recommended that patients use Longquan under the guidance of traditional Chinese medicine practitioners, and if necessary, can also be used in combination with other traditional Chinese medicines.