I just shaved and think I may have gone against the grain. Does anybody know how long it takes for an ingrown hair to develop or how to treat them

Hey, I have really thin skin and I suffer from this condition too. I use scrubs on a regular basis and it actually helps me. When I see ingrown hair, I sanitize a pin and take them out of skin. Here are several links that might help you How to Get Rid of Ingrown Hairs Ingrown hair treatment