I know allergies are horrific this time of year. I live on Advil Sinus right now. Do you have prescription allergy meds? A nasal spray is your best friend, but a PRESCRIPTION one, not something off the shelf because those are addictive.

Like Karen, I think it sounds like a sinus infection. A quick round of antibiotics will make you feel like a new person.

And how do you know its mold? Do you see it? If so, thats a bio hazzard and your landlord's legally responsible to take care of it. My sister in law has major mold issues right now and is fighting him to do something. In the meantime she bleaches the moldy places whenever she sees it reform.