The mmr can have similar symptoms to the others such as sore arm and possible fever later in the day but not always and then about 7-10 days later they can get a slight fever again and sometimes a slight rash but it’s normal and goes pretty quickly
My eldest was ok the day of his mmr and the next day, however 10 days later he was poorly with a fever, rash and was sick but was ok again after a couple of days xx
Following x