Usually, there is no quick relief for sudden finger cramps. Sudden finger cramps may be caused by calcium deficiency, tenosynovitis, carpal tunnel syndrome, etc. Patients can improve their condition through general treatment, medication, surgery, and so on. 1. Calcium deficiency: For patients with sudden finger cramps caused by calcium deficiency, they should pay attention to dietary adjustments, eat more calcium-rich foods, and get more sunlight. Patients can take calcium supplements, such as calcium carbonate, calcium gluconate, etc.; vitamin D preparations, such as vitamin D3, cod liver oil, etc. for calcium supplementation to improve the symptoms. 2. Tendinitis: patients should pay attention to rest, avoid excessive activity of the affected area, can improve the symptoms through hot or cold compresses. Under the guidance of the doctor can take non-steroidal anti-inflammatory drugs, such as ibuprofen, etc.; local anesthetics, such as lidocaine, procaine, etc., for treatment, for serious patients can be treated by tenotomy decompression surgery and other ways. 3. Carpal tunnel syndrome: patients can be treated with non-steroidal anti-inflammatory drugs, such as acetaminophen, etc.; nutritive nerve drugs, such as methylcobalamin, vitamin B6, etc.; and closure drugs, such as tretinoin, procaine, etc., under the guidance of doctors. For patients with serious conditions, surgical treatment can be carried out through open surgery, endoscopic carpal tunnel release surgery and so on. It is recommended that patients strictly follow the doctor’s instructions for medication, actively cooperate with the doctor’s treatment, pay attention to rest and warmth, avoid cold stimulation, and pay attention to the monitoring of the condition, if the condition worsens or other adverse reactions should be timely medical consultation and treatment.