The leg pain on rainy days is mainly due to aseptic inflammatory lesions in the legs, which can cause blood circulation to slow down after rainy days and cool weather, and the accumulation of inflammatory metabolites, which stimulates the surrounding nerves and can cause pain. 1. Be sure to pay attention to warmth, not to get cold, and apply warm water bags for hot compresses 3-5 times a day for 20-30 minutes each time to increase blood circulation and promote the absorption of inflammatory metabolites. 2. 2, oral non-steroidal anti-inflammatory painkillers, such as nimesulide, loxoprofen sodium, diclofenac sodium, these drugs can effectively relieve local sterile inflammation, reduce inflammatory edema, reduce pain. In addition, it is necessary to take oral Chinese medicine that activates blood circulation and relieves blood stasis, soothes the tendons and improves blood circulation, such as Dazhiri capsule and blood circulation and pain relief capsule, to increase blood circulation and promote the recovery of inflammatory conditions. After the above treatment, the symptoms will be significantly improved in 2-3 days.