How can I make interstitial cystitis symptoms go away?

IC pain. With the proper treatment, medications, diet.
Diet and medications. Dietary changes and avoidance of high acidic foods like citrus fruits and carbonated beverages are easy corrections. Dmso has also been shown to assist with relatively quick improvement in symptoms. Elmiron (pentosan) has been shown to help also but it takes abut 4-6 months of use before you start seeing improvement.