Knee pain should be for different causes of targeted selection of ointment, you can paste the common common ointment, black ointment and other treatments. 1. Common plasters: the most common common plasters on the market, such as Flurbiprofen Babu Cream and Wound Dampness Pain Relief Cream, etc. These plasters can play the role of anti-inflammatory and pain relief, and effectively reduce the inflammation foci of the knee, so that the arterial blood supply increases to help the recovery of the venous return increases to help the inflammation of the metabolism, are able to alleviate the symptoms of knee joint pain. 2. Black ointment: is the application of very many Chinese medicine processing, boiling made, the effect is more obvious. It is not suitable to be applied when it is hot and there is skin allergy, because when it is hot, the ointment will gradually melt, resulting in the skin being soaked white and will stain the clothes, so it is not suitable to be applied when it is hot. The cause of the knee pain needs to be identified and further treatment should be taken to address the cause.