A while back at the beginning of October, we took Chloe to the park and Matt deciding to show off, started climbing over these climbing rocks they have for the teenagers there and fell off and hurt his shin, it came up in a weird lump and went every colour of the rainbow at the time, after a couple of weeks it was still hurting him and the bruising hadn't gone so he went to the docs who told him he had an infection in it and gave him antibiotics. The bruising went a bit, but then it came back, it's now nearly three months since he did it and he still has a lump and the bruising keeps coming and going and it's still hurting him. Now being a man, he won't go back to the doctors. Any ideas what it is? Do you think it's still infected or something else?