My sister suffers from adenomyosis and has terrible period pain for 8-10 days during her periods even tough the bleeding stops by the 4th day her pain continues. She needs 4 meftal spas everyday during her periods to control the pain and is still in pain and agony and suffers like hell. Other medicines like drofem, ibuprofen etc don?t work for her, any suggestions what other medicines she can take to help her ease her pain during her periods which won?t affect her gerd problem, kindly help! thank you!