Yunnan Baiyao has the function of reducing swelling and relieving pain, activating blood circulation and removing blood stasis, and is mostly used clinically for the treatment of swelling and pain in joints, skin, and soft tissues caused by bruises, qi stagnation and blood stasis. If patients now have localized soft tissue redness, swelling and pain due to trauma, they can choose to use Yunnan Baiyao externally for treatment. Some patients may experience localized itching and tingling of the skin after using the medicine, which may belong to allergic reaction and need to stop using the medicine in time. Yunnan Baiyao belongs to the national confidential formula, contains many active ingredients, pharmacological effects are very wide, usually used for the treatment of trauma bleeding, bruises, hematoma pain and other injuries, but also can treat a variety of diseases, with pain and bleeding, blood stasis, anti-inflammatory, swelling effect, but also can be used for venomous sores, frostbite, chronic gastritis, cervicitis and other diseases.