Allergic rhinitis, or hay fever, flares when the immune system overreacts to allergens like pollen, dust, mold, or pet dander. Sneezing, itchy eyes, and a runny nose are common, and the condition can disrupt sleep and daily activities. Preventing symptoms starts with reducing exposure: keep windows closed during high pollen days, use air purifiers, and shower after spending time outdoors. Regularly clean bedding and vacuum with a HEPA filter to minimize dust mites. Wearing sunglasses outside can help protect your eyes from pollen. Combining these strategies with medications or nasal sprays often keeps allergic rhinitis under control.