Hi my 13 month old son had his MMR jab on 11th January and had developed a rash all over but mainly on his cheeks, neck , hands, legs and feet around a week ago, he has been very unhappy for around 2 weeks but this morning his rash has gone into red pin prick spots on his arms, hands and cheeks!!! He is refusing breakfast and only wanting milk but seems very tired even after sleeping through from 7.30pm til 7am. He seemed rather well yesterday so I m very concerned why the sudden change again :( Please help advise me. Kind regards Concerned mummy :(