Drink plenty of water.
Other side effects
could be (again depending on the individual), anger, lack of appetite, weakness, shortness of breath, lip sores, hair loss, itching, sleep depravation, swollen tongue, and a few more.
Look at the bright side: You're getting a treatment that was not available years ago. Years ago you would have no chance of clearing. Now you do. So, hang in there, bite the bullet and you'll be fine.