What causes a rash near anus in a child after MMR vaccination?
Patient: Hi, My baby is 16 months old and recently rec d the MMR vaccine...I initially noticed a rash around the rectom and the vaginal cavity areas and then she was fine...a few days later the rash seems to have developed once again and its like small pimples in shape...what could this be? She is about 21 lbs, and has had an average medical history thus far. Doctor: some children develop a very mild form of measles following MMr vaccine by one week to 11 days.. this includes rash,  fever, loss of apetite and general feeling of being unwel.. this continues only for 2-3 days