My cousin of age 36 is having pain on left buttock and leg while walking. He has difficulty in getting up from bed and chair. Apparently this is sciatica. Thats what I can think of from symptoms. The pain has become worse with time. I am not sure how to go about the treatment. Could you please let me know which specialty doctor should be able to confirm it's sciatica or something else? I have to start the treatment immediately as it is already too late. He is on medication for seizure (fits).