Hi,i have question about my 11months old baby.Last night putting him to sleep between he drinking his milk and falling asleep must have been 10-15minutes and then i noticed 3 big lumps appearedon his head 2 on right side and one on the left side ja there was some more red spots back of the head.Lumps where like size of the plums and sticking out not like under the skin and kind of hard not soft.I was so worried so we took him to hospital straight away but on the way to hospital and waiting to see the doctor the lumps started to disappear and about 2hours later you could only see red marks where the lumps was.Talking to the doctor she said only thing she can think is some kind of allergy reaction but im still worried about it.Could there be any other reasons?This morning is all fine again you cant see even the red marks anymore.