How to treat allergies: Step 1: identify and avoid triggers Common allergens include pollen, pet dander, dust mites, mold, and certain foods Step 2: allergy-proof your home: Air purifiers for airborne allergens Vacuum regularly for dust allergens Wash bedding frequently for dust mites Dehumidifier to keep humidity levels below 50% for prevention of mold Step 3: nasal irrigation with saline solution Neti pot or nasal saline spray regularly to irrigate nasal passages Step 4: over the counter meds