Mumps is the equivalent of mumps in Chinese medicine, and cactus is used to treat mumps by applying freshly crushed cactus externally, which has the effect of detoxifying the toxins and reducing the swelling. The pharmacopoeia records that the cactus is used for mumps treatment is freshly crushed and applied to the affected area, or the juice is applied to the affected area. Mumps is a respiratory infectious disease caused by mumps virus infection, mainly manifested as parotid gland enlargement, swelling and pain. Cactus has the effects of detoxifying and reducing swelling, promoting qi and blood circulation, cooling blood and stopping bleeding (cooling and moisturizing the blood to prevent bleeding). It can be used for mumps, carbuncle, sore throat, coughing with lung fever, vomiting blood, hemoptysis with consumption, hemorrhoidal blood, sores and boils, stomach ache, dysentery, ringworm, snake and insect bites and burns. Cactus can have an immediate cooling effect, after the paste does not have obvious skin irritation, the patient can immediately feel more comfortable, after a few minutes on the paste, it is likely that the pain can have a certain degree of relief. Pregnant women should not take cactus. Cactus for the treatment of disease should be used reasonably under the guidance of a doctor, so as not to aggravate the condition.