Face bumps/little pimples after makeout


Okay so, last night, I was at my boyfriend’s. We made out a lot and cuddled but nothing more. He’s really cute and affectionate, so we are often cheek to cheek and kissing. This morning, I wake up and my chin is covered with little bumps. Some are red and irritated but they are not like acne pimples. My bf shaved the night before and he didn’t use any face cleaning product after that. It’s the second time it has happened. How to avoid them? How to make them go?