non-Parkinson's drug

I AM WRITING THIS BECAUSE I AM SURE THERE ARE OTHER PEOPLE WITH THIS DISEASE THAT THIS HAS HAPPENED TO. I HAVE BULGING DISK IN MY LOWER BACK . I GET A STEROID INJECTION ANY WHERE FROM THREE TO SIX MONTHS APART. I NOTICED THAT EVERY TIME I GET AM INJECTION MY PARKINSON'S SYMPTOMS DISAPPEAR FOR A FEW DAYS. I RELAYED THIS TO MY FAMILY DOCTOR. HE GAVE ME A ONE TIME SCRIPT FOR A PREDNISONE PACK. I TOOK THE FIRST DOSE AND THE NEXT MOURNING I COULD ROLL OVER IN BED, GET UP FROM A CHAIR,TALK NORMALLY, AND WALK NORMALLY. SO I WENT TO MY NEUROLOGIST AND SHOWED HIM WHAT THE EFFECTS OF THIS STEROID HAD ON ME. HE SAID HE WAS CONFUSED AS TO WHY A STEROID WOULD HAVE SUCH A PROFOUND EFFECT ON ME BUT' STEROIDS WERE NOT A TREATMENT FOR PARKINSON'S 
        STEROIDS ARE USED FOR INFLAMMATION OR AN ALLERGIC REACTION AND MS AMONG OTHER THINGS.I WOULD HAVE THOUGHT HE WOULD HAVE INVESTIGATED THIS FURTHER. I AM FREE OF SYMPTOMS WITH A STEROID. THIS WOULD INDICATE TO ME THAT THERE IS AN UNDERLYING CAUSE FOR PARKINSON OR A STEROID WOULDN'T ALLEVIATE MY SYMPTOMS. HAS ANY ONE ELSE GOTTEN RELIEF LIKE THIS. I HAVE USED SEVERAL DIFFERENT PARKINSON'S MEDS BUT NONE HAVE WORKED.