Thank you for your query.
I can understand your dilemma. As you have not mentioned the age of your daughter I presume that you gave her fish for the first time. In this case avoid giving her fish for a week or so. Once she is normal and does not have any upper respiratory tract
) then you can re-introduce fish and see. If she is allergic she should vomit again.
Children with upper respiratory tract infection do vomit with cough
. I suggest that you give her some decongestant/cough syrup for relief from cough.
I hope I have answered your query to your satisfaction.
Wishing your daughter all the best.