Dear Jenny,
Years ago, took care of an autistic man who had recurrent scar tissue in the urethra, caused by multiple catheterizations (he had many surgeries all his life, starting as a baby), that caused a burning sensation and a backup of urine, sometimes to the point of not urinating at all. Had to take him to many doctors to get it fixed. It is a painful procedure to get it fixed. In his case, this was life-threatening, so we had no choice.
Would suggest you consider Puritan Pride "triple cranberry" soft gels, one in the A.M. and one in the P.M. to start, and later, one at Noon, if needed. Their phone number is 1-800-645-1030.
Hope this helps.
Yours truly,
Monica