Symptoms: Knee pain, arthritis, rheumatic heart disease, mental illness due to anger (both sides are used at the same time).

Acupoint selection: Acupoint is selected in the second half of the lateral corner of the small nail.

Principle and application:

1. Huoxi point is effective in treating mental illness (caused by anger).

2. Huoxue point has a good effect on the treatment of shoulder and arm failure and pain in hands and temples.

3. Huoxi point is near the well point of small intestine, and it also has the function of inducing resuscitation. The exterior and interior of the heart and the small intestine, and the du meridian of the strange meridian is also related to the small intestine, so Huoxi point has a particularly good effect on treating the mind (the pain caused by anger is also effective).

4. Fire knee point is particularly effective in treating deformed knee arthritis.

5. Fire knee acupoint is located on the small intestine meridian of the little finger, "the heart and the small intestine are both inside and outside", so it is used to treat heart disease, psychosis, knee pain and so on. "Small intestine connected with spleen" is also an effective method to treat shoulder failure.