When a low pressure front moves in and replaces a high pressure front, the drop in barometric pressure, drives my allergies nuts. My nose blows and runs like crazy and I can't think straight.

I understand its not really allergies, but it might as well be allergies. There's nothing that can help me breathe normal during these situations.

All the sneezing can also aggravate my nose and bring on 'real' allergy attacks from other more likely allergens like cats, pollen and dust.