My gf's period started late and also started having red pimples all over her face after having sex for the first time till now.are these symptoms rela (carisoprodol)?

The red pimples on: Her face are not likely due to having sex. Some females do have acne breakouts near the time of their period. Reasons for missed/late periods: low body weight, obesity, marked weight ^ or v, over-exercise, endurance athletics, breast-feeding, ^ stress, illness, eating disorders (bulimia or anorexia), anovulatory cycle (no egg released), travel, hormone irregularities, drug use ; meds