Hello!
If you don't have a heating pad and are looking to get rid of cramps,
Things like taking a hot bath or shower can be a good replacement. Heat helps in minimizing the cramps.
Alternatively drinking lots of water and taking an NSAID (Things like Aspirin) will also help in getting rid of cramps!
Certain foods have also been said to help in preventing cramps.
Occasionally doctors have been known to recommend Birth Control or Magnesium supplements to help with cramps as the change in hormones allows for the process to more easily go through your body and less painfully.
Hope this helps answer your question.