I have been on 50 mgs. of Topamax bid for over a year, and I have never experienced the horrible burning in my head as you describe. My dosage has just been increased to 75 mgs. at hs because my migraines are out of control. Also, my neurologist has changed my abortive med to Treximet as the Axert was no longer of any benefit. In addition, she suggested vitamin B2 400 mgs. and magnesium 500 mgs.
This will probably work for about three months until my body becomes accostomed to the meds. Then she will change the Treximet to Frova.
Icepacks are always in my freezer also!
If your doctor is not listening to you, then it is time to change your doctor!
Good luck and God bless.