New York Dec 2: While the onset of freezing temperatures brings an end to seasonal pollen allergies it doesn't mean that your environment is free of allergens. Huffingtonpost.com shares a list of a few common triggers that can contribute to those unwanted allergens: Dust and dust mites What: Microscopic allergy symptoms-inducing dust mites lurk in bedding mattresses carpets and upholstered furniture. Tip: Use dust-proof covers on mattresses box springs and pillows to avoid exposure and regularly wash bed linens in hot water to kill dust mites. Vacuum all carpeted areas at least twice a week. (Read: How to prevent allergic