My ds 3 years old - day 2. We worried a lot this night and at day 2 your face and your whole body was like this. It was terrible and I was really scared what could happen to you. Thank god - later that day - the allergi began to go away and in few days you where back to normal. There is no explanation on what happend - at first the doctor thought it could be penisillin-allergi men now you have been tested and its not penisillin-allergi. It has never happend again these last 3 years.