Patients with lumbar muscle strain can find heat application helpful in relieving symptoms, as it is a type of physiotherapy. Heat application can promote blood circulation, reduce inflammatory reactions, and actively alleviate symptoms such as lower back pain. Patients with lumbar muscle strain should also ensure adequate rest, develop proper habits for using the lumbar region, and avoid long-term heavy physical activities involving the back. Additionally, treatments can include the use of non-steroidal anti-inflammatory drugs, blood-activating and stasis-dissolving medications, in combination with heat application, physiotherapy, massage, or injections. These methods can actively improve symptoms and promote recovery, thus heat application is advisable for patients with lumbar muscle strain.