Just a couple of thoughts. It's not deodorant that works but anti-perspirant, which contains aluminum. Even though there is no clinical proof that topical aluminum products cause cancer, many people have stopped using it for this reason. For sure it interrupts the sweat function, and I would be reluctant to use it all over my body for this reason. Sweat is nature's way of cooling the body, and keeping cool is a central tenet of fighting Grover's. Just something to think about and perhaps research further. Secondly, be aware gabapentin can have some nasty side effects and can be addictive. Since you used it for a long time without problems, it may be safe for you. I thought it would be safe for me because I had taken gabapentin for over a year for post herpetic neuralgia following a very bad case of shingles, but when I took it for Grover's my calves and ankles swelled and, after less than a month's use, I had awful withdrawal symptoms for about a week when I quit, including rock bottom depression. Others report memory loss. There's a Facebook group which discusses gabapentin that you might want to take a look at.