DPT & MMR shot hard lump still there eve

Hi My doughter had dpt (leg) and MMR (in hand) shots in govt hospital india, 1 month and 1 week back In 1st week there was not side effect even I was expecting side effect.. we did apply cold pack from time to time. From end of 1week we saw reddish area and little area was swollen for few days..Then given paracetamol and ibrufen (I don't remember exact name) syrp as given by doctor Most of swollen was gone in .2 week and but a tiny hard lump was present till today.. Last few weeks I have applying alot of cold pack and thombophom cream  Now I see sometimes once in 1-2 days area become redder from top of leg to till site where shot given for few minutes (may be that could be due to playing and hitting) And hard small 1.5 of peanut sized lump is still there. And when happy ice pack area become little backish. Because my daughter have no pain and no problem and enjoy a lot while day..But that lump make us worry but not her..She don't feel pain there when touch.. Please guide and