Small Red Bumps on Inner Thighs

Patient: Yesterday I noticed a small amount of red bumps on my lower inner thighs (not on groin/vagina/butt) they are not itchy unless touched. 2 days before I used my boyfriends shaving cream and am wondering if it’s an allergic reaction, ingrown hairs or heat rash? I have not had it before, and it’s worrying me. My boyfriend and I are both STD free, and have been intimate for the past 8 months. It still worries me, and I am probably over thinking this but I would like to know what it could be.

Symptoms: Small red bumps, itchiness