Well...how many time have you been prescribed this in 12 months?
Are you seeing a Specialist? If not, you should be referred to a ENT Specialist if your regular physician is continually prescribing medrol packs.
How long have you been on them? Usually, steriods are not used on a long time basis, but, then again, everyone is different, the tinnitus could be the sign of high blood pressure starting, I would certainly check with your PCP regarding how long a term you should be on these.