Change clothes before entering your bedrooms to keep pollens out.??? At home and in the car, keep the windows closed and set your air conditioner to ???recirculate.??? Clean filters in room air conditioners frequently. ??? Eliminate weeds from your yard and plant allergy-friendly greenery such as azaleas and begonias, palm, pine, fir and dogwood trees; hibiscus, boxwood and yucca shrubs.More Like