You might be allergic to poop, spit, or other tiny particles that cockroaches and rodents leave behind. Keep pests away by cleaning dirt and crumbs from your kitchen countertops. Seal any cracks in your house. And put a lid on anything that might be a food source, including trash.
If that’s not enough, set out baits or traps. You might need to avoid or limit use of pesticide sprays. Harsh chemicals can bother your airways.