Just put a mask on her in public, and you're good to go! If it is a significant ailment in any way, of course. If it's just a tiny little thing that people occasionally notice and tease, then it is of little concern.
What matters more is if the food is loyal or if she's fresh or used. Or if she is even capable of loving you for who you are, or she'll just pretend to go along for however long because she isn't a total bitch, but the moment she can ditch you arises, she'll take it.
These matters are at the core of the issue regarding the possibility of dating her. Is it worth my time?