The common causes of back pain without ointment and pain relief after ointment are cold back, lumbar muscle strain, and myofibrillitis of the back. 1. Cold back: Due to cold, the back muscles are tense, causing back pain. Applying ointment is good for promoting blood circulation, which can reduce the pain. 2. Lumbar muscle strain: due to long-term stooping activities, improper posture, causing chronic injury to the muscles of the lumbar back, can cause pain in the lumbar back, after applying the cream, inflammation relief, pain can be alleviated, stop using the pain can be repeated. 3. Back muscle fibrositis: a non-specific inflammatory reaction occurs in the back, mostly caused by cold, overwork and other factors, the common symptom is lumbar back pain and discomfort, stiffness, applying ointment is conducive to the absorption of inflammation, can relieve the pain. There are many reasons for back pain, and it may also be related to herniated discs and other diseases. If the symptoms continue to be unrelieved, it is recommended to consult a doctor in a timely manner to clarify the cause of the disease and carry out targeted treatment.