Hi, I Had Sex With My Girl Friend After Not

Hi, I had sex with my girl friend after not having sex for a long time with her. Her vagina had shrunk somewhat ant sex was a bit right and painfull for both of us. In the morning my penis shaft and end has about 5 to six clear type small spots on it and my penis is quite red in colour. My girl friend wreckons it's caused by the friction. As the day has gone on they seem to be calming down with vagicyl cream and frequent bathing. Is this friction burn.