Suggest Treatment Of Right Side Of Mouth Drooping Down

I'd belpausy since september 10 a few days before i'd headache on the back left side but it's not too much and then on sept, 10 at night when i brush my teeth i saw my mouth at the right side is down and then i go see the doctor he gave me steroid 4 tablets 3 times a day and Vitamin B 4 tablets 3 times a day on first week and on the second week 2 tablets for steroid and he said next week will be steroid 1 tablet but vitamin B not change, right now i doesn't feel better it still the same. Can I have face therapy? or What can I do? I'm a man with 49 years old. Thank you.