First of all, the cause needs to be clarified. Usually the doctor will develop a reasonable plan for treatment according to the cause and severity of the cramps, so it is impossible to say exactly which treatment is the best.
In cases where no primary cause is identified, patients can treat themselves, such as gently massaging the cramped area with their hands when the cramp occurs, and bringing the raised cramped area back to its original normal position.
If the cramps are caused by other primary diseases, you need to actively seek medical treatment, and generally after the primary disease is well treated, the cramps will gradually reduce and disappear.