Yeah, you can have a dairy allergy. My best friend from high school's older son had a milk allergy when he was a baby. Any time he'd drink dairy based formula, he'd break out in a rash on his face and the rest of his head. Just another one of the reasons I'm going to be breast feeding when I have kids.
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Guild Wars 2, Crystal Desert server:
Inga Freyasdottir, lvl 40 Norn Mesmer
Deathbringer Kaami, lvl 16 Asura Necromancer
Popina, lvl 15 Asura Elementalist
Althaia Willowbark, lvl 7 Sylvari Engineer
Maeve Amnell, lvl 4 Human Guardian
The MMO-Zam's FB group. Please message me first so I know who you are.