hello,
my dd also has really bad reactions to mozzie bites. we recently discovered the hard way she also has serious reaction to ant bites, like bull ants or jumping jacks (we are in the country). the more she is bitten the worse reaction she has, and now we have to take her to the doctor if she is bitten.
none of this helps you!
i also have bad reactions to mozzie bites, and her father is allergic to ant bites, so its possibly hereditary.

i would keep antihistamine on hand, thats what the doctor will give anyway. they only give a needle if its super serious with swelling in the mouth etc.