Is it normal to get a mild fever after you get your lip pierced?
Only if you have a mild infection.
Actually, it is perfectly normal. Think about it. If you now have a hole that is completely through your lip, it will get swollen. It's your body's natural way of healing. If your neck gets swollen or if green stuff is coming out of your lip, that's not normal. How do I know? I've gotten my lip pierced.