When I started getting allergy headaches, my aunt and mom both swore by using peppermint oil on my temples to relieve them. And it worked!
The best part is that it can be used for other things too:
1. Put it on your shoulders to relieve tension
2. Add to your water for a minty flavor
3. On your chest for heartburn
4. Bug repellant!
5. Upset stomach relief
You can order it online here.
My favorite part is the tingling, relaxing feeling that it provides 😀