I am so sorry that you are suffering with migraines, and I am angry that your doctor will not help you!
Could you speak to your primary care physician? Possibly he/she could help you with a prescription until you get to see the neurologist.
I just can't believe that a neurologist did not offer you something to help your pain!! They have so many drugs today to try with migraine.
I do get migraines, and, unfortunately, I have a lot of trouble with side effects from the medications. They do have triptains like Imitrex that you can take at the first sign of migraines to knock it out. (Again, some people cannot take it because of the side effects, but for others, it is a godsend.)
There are 3 different classes of drugs that are usually tried to help prevent migraines. One of the drugs commonly used to prevent migraines - especially for people with PCS - is nortriptyline (also amiltriptyline). They are used in small doses, and from what I have read, many people get relief from them.
Over the counter you could try Advil or Motrin, but you do have to be careful. It can cause stomach problems.
If you can take aspirin, I know that sometimes they recommend aspirin and tylenol taken together to help migraines. Again, you do have to be careful not to overdo either medication even though they are over the counter.
There have been studies done with Vitamin B-2 and migraines. B-2 is supposed to help with migraine control, but you have to take it for awhile before you see results. You can Google "Vitamin B-2 and migraines" and read about some of the studies that have been done. (If you do try B-2, take it along with vitamin B complex.)
There have also been studies done with CoQ10 as well as Petadolex.
Another option, if you are open to it, is acupuncture. I have to tell you that I had migraines before PCS, and acupuncture helped them. After PCS my migraines have been different: much longer lasting and more often, much more disabling, and acupuncture did not really help me. However, some people have had good results with acupuncture.
I hope that this is not too "scattered". I have written this while I have a headache, but I felt that it was important to write to you. If I were you, my first option would be to call my primary care physician and explain to him/her what is going on. I would be surprised if your doctor could not help you.
Best of luck. Let us know how you are doing.