I've Had Labyrinthitis For 6 Weeks Now, I Had A

I've had Labyrinthitis for 6 weeks now, I had a doctor prescribe tablets in the beginning to help me do the exercises (Brandt Daroff) which I have religiously done 3 times each day - but I don't seem to be improving and the last couple of days I've been getting pins and needles down my arms and in my hands? Please can you advise what I should do?
Many thanks
Jenny