Lumbar muscle strain took a few days of medicine waist is still painful and hard, considered for the strain caused by aseptic inflammation symptoms are heavy or in the period of taking medication to continue to carry out the activities of the lumbar muscle strain, such as bending, sedentary, heavy lifting, etc., caused by aggravation of the condition or does not alleviate. Lumbar muscle strain, also known as “chronic lumbar strain”, “lumbar dorsal musculoskeletal fasciitis”, “functional low back pain”, etc., refers to the accumulation of damage to the lumbar muscles and their attachment points, resulting in localized Chronic aseptic inflammation, with lumbar pain, recurrent attacks, aggravation after exertion as the main clinical manifestations of the disease, with a long course, easy to recur and other characteristics. Lumbar muscle strain is mostly caused by the accumulation of lumbar muscles, fascia, ligaments and other soft tissues, mechanical, chronic injuries or acute lumbar sprain after not obtaining timely and effective treatment and turned into a chronic disease caused by aseptic inflammation. If you do not pay attention to rest during the medication, or the condition is more serious, you may experience slower relief. Lumbar muscle strain after taking a few days of medicine waist still pain and hard, if it continues to be difficult to relieve, it is recommended to consult a doctor in order to clarify the cause of the disease, targeted treatment.