I was asked by my doctor to begin using minoxidil 5%, 10 days post op. Id rather not, as I'm a bit worried about the side effects. I don't want to go against my doctors wishes but I tried using Rogaine foam before.. I may have used a bit too much per dose and I got some chest pains. I'm also a bit worried about having an allergic reaction as I've seen in other post on realself.