After my first shave I developed big razor bumps on one area of my neck. First I thought it was acne but now convinced they're bumps. I never had them before and hope to never have them again.

Can anyone tell me how long until they go away?

I did my second shave today and still did not want to attempt my chin and upper lip. I did my pre-shave and lather well but still didn't feel comfortable to try. Maybe next time. I stayed away from the bumps and went over them with a safety blade instead without incident. No blood on my second shave :-)