In daily life, if a patient’s lateral thigh muscles are spasmed and painful after strenuous exercise, after prolonged exertion and strain, or after the muscles get cold, cramps can occur. In addition, if the patient suffers from lateral thigh dermatomal neuritis, the cramps may also occur and be accompanied by localized loss of skin sensation and loss of muscle strength. In the event that this symptom occurs, the patient can be instructed to reduce the amount of activity, pay attention to local warmth, or bed rest, and give hot compresses to the outer thighs, or use Chinese medicine fumigation, or with bioelectric therapy, physiotherapy instrument baking electricity, microwave treatment, etc., to improve local blood circulation and promote muscle metabolism, which can effectively relieve muscle spasm pain and thus relieve the cramps.