My 4yo was bitten by a 2yo yesterday. This isn't a thread about behaviour, I'm not cross as understand it's not uncommon but I'm just wondering how long the mark generally lasts? The skin wasn't broken, but it was a "hard" bite which lasted about 3 seconds. It was on the outer part of the forearm so not much muscle and thinner skin I guess - not like it was on the thigh or anything. There is just a red bite mark as if someone has just drawn it on with a faint red pen - no indents or anything - I'm just thinking if it's still there and the dents have gone but the mark hasn't, has this damaged the skin and could it last forever???