I was diagnosed with Fibro about 6 months ago. I have been looking for anything that would help with these head sweats. Believe it or not but Zyrtec has stopped my head sweating! I stopped taking it just to prove to myself it works. I checked with my doc and the pharmacist to make sure it would not harm me. I have high blood presure and have seizures too. Check with your doc before trying it..but it feels so good to go out in public and not sweat!