Got a rash after touching boyfriends juices on his dick??

Samantha

Okay so we had sex tonight and we been together for almost 3 years and tonight after we get done doing it I start playing with his dick and mine and his juices is on it of course and then my hands started burning so I looked in the light and they are really red and burning and stinging and its going up my fingers.. Anyone know what this could be from?? Never had this happen the whole almost 3 years we been together.