The main measures to soften stiff leg muscles are as follows.1. Take oral Eperisone Hydrochloride tablets. This drug is a muscle relaxant, after oral intake can make the tense and stiff muscles become loose. 2, warm water bag heat compress, by increasing blood circulation can effectively promote local inflammatory metabolites metabolism and absorption, to avoid inflammatory stimulation can make the muscle become loose. After the hot compress, can effectively let the cooled muscles, tense muscles become relaxed. 3, can carry out massage techniques, usually for muscle relaxation, through the rolling method and local pressure, can let the muscle become relaxed, and can carry out local soft tissue flicking techniques, so that the surrounding soft tissue adhesions become loosened, can effectively avoid muscle stiffness. Infrared treatment can also increase blood circulation and promote the absorption of inflammatory metabolites, which can effectively relax the muscles.