The way I can explain it was using the previous medications was just like applying a bandaid. It worked for the time being but it wasn't a real solution.
I went through using a variety of treatments in combination trying to get relief before I got the correct diagnosis. I was taking nexium to control acid, reglan to move digestion through, carafate for treatment of ulcers, zofran to control nausea, and viscous lidocaine to numb things so I could even eat. Even with all these medications, I still was in pain and wasn't having much progress getting some areas to heal. When I had them go away, it was only temporary as they would return eventually.
After realizing these treatments weren't what I really needed, my doctors were able to change the treatment plan and I've had no issues. And not having to be a walking pharmacy is a nice added bonus. Short term it might seem really daunting to be in pain and deal with, but the procedure is fast and afterwards, you'll get an answer which could be the key to really feeling better.