18 days ago my daughter's 3 and half months vaccine completed.. But now when I put my finger on her left leg where vaacine pushed there was a small little round hard type feel.. what to do for that ?

A. You should do hot compress to melt that lump usually lump should normally formulated but if it is already there then it is going to be good for you to check how hard it is and then you do hot compress that will help otherwise you can consult your doctor as well