Treatment of hamstring strains: First, the strained hamstring must be fully relaxed, avoiding continued activity and stretching, otherwise it will lead to further aggravation of these strains, which is not conducive to recovery. In addition, attention should be paid to avoiding cold, as this can lead to a slowing of blood circulation and a build-up of inflammatory metabolites, leading to an increase in symptoms. Second, 24 hours after the injury to warm water bags to increase local blood circulation and promote the absorption of inflammatory metabolites. If available, it is best to use a cast or brace to fix the strained position for protection to avoid continued aggravation, and to elevate the injured leg above the level of the heart, which can effectively promote the elimination of swelling and inflammatory edema through the effect of gravity. Third, you can take oral anti-inflammatory and analgesic drugs, such as nimesulide and ibuprofen, to relieve inflammatory edema and relieve pain. Fourthly, you can take oral Chinese medicine to activate blood circulation and eliminate blood stasis, reduce swelling and pain, such as Dazhiri capsule and blood circulation and pain relief capsule to increase local blood circulation, promote the absorption of swelling and bruises, increase blood supply to arteries, and help recovery. Usually after 5-7 days, the symptoms will be significantly improved.