My daughter will be 4 at the end of August. She has a marble sized lump in her upper, outer thigh at the site of her DPTP and Hib immunizations , done in March 2011 (yes, over a year ago!) The skin is discoloured- pale. The hair around that area is darker and longer than the baby fine, tiny blond hairs she has elsewhere. And, she is often itching the area. Any ideas?