Muscle Cramp Remedies

Due to cancer treatment, I've had excruciating muscle cramps... the kind that are rock hard and hurt for several days after the cramping goes down. Magnesium helps, but oncologist explained that magnesium is "contra-indicated" for cancer. She suggested Coconut water... it has a lot of potassium. This really helped a lot. I still get occasional mild cramps... no big deal. Hope this helps.