I Hhave Been Taking Hydrocodone/Acetaminophen 5-325TB For Pain Since My

I hhave been taking Hydrocodone/Acetaminophen 5-325TB for pain since my knee replacement surgery on March 17 and have tapered off earlier to mostly 500mg Acetaminophen this week and am having severe burning from GERD from my throat into my mouth and all the way down to my bladder with some burning when I urinate. My surgeon didn't know what I should take and wants to do Therapy Manipulation on my leg for better bending next Tues. I have to be able to take some kind of pain killer but scared to in this condition. What should I do for the burning? And what should I take for pain next week with intense therapy? I am desperate to know if I should postpone the procedure to take care of the burning lst. Sorry, I should have been smart to realize this would cost but my husband doesn't allow me to use my credit card online, but I guess I''ll have to just deal with the pain until Mon. and try to see my Dr.