My daughter has eaten banana several times before with no ill affect. I tried her on yoghurt for 2 days and she seemed fine, although a bit of a rash on her face but she often has rashes from dribble/teething. Last night I gave her yoghurt and banana for tea after she refused a firm favourite of butternut squash. She probably only had 3 teasponns. She vomited everywhere at bedtime and was retching for about an hour. She has a rash on her face this morning. She has no temperature so I don't think its a bug.
Could she have a dairy allergy? This is the first bit of dairy I've offered as she has just turned 6 months, I know yoghurt if often less allergenic than milk/cheese so I started off slowly. Should I hold off dairy another month?