The recurrence of lumbar muscle strain primarily requires rest as the first measure; it is essential to rest in bed and avoid exerting the muscles in the lower back. Secondly, some external plasters can be applied, such as non-steroidal anti-inflammatory and analgesic plasters, as well as plasters that promote blood circulation and remove blood stasis, to alleviate pain in the lower back. Thirdly, some physical therapy methods can be used, such as massage, acupuncture, electrotherapy, and magnet therapy to relieve the pain in the muscles of the lower back. However, among these methods, rest is the most important, including being cautious with methods of exercise and training. For instance, some people prefer running, while others enjoy playing ball sports; generally, patients with lumbar muscle strain should absolutely avoid these kinds of activities. If they engage in strenuous activities even once, the lumbar muscle strain will recur. It is recommended for patients with lumbar muscle strain who enjoy exercise to consider swimming; swimming is a non-weight-bearing form of exercise that does not aggravate the condition but can strengthen the muscles in the lower back, alleviating the symptoms of lumbar muscle strain. (Please use medication under the guidance of a professional physician.)