Dust mites can easily get in your eyes or nose — some are even small enough to get into your lungs. The protein in the waste is what is inhaled, and the symptoms are similar to hay fever or pollen allergy, which includes:

• Sneezing;
• Runny or stuffy nose;
• Itchy, red or watery eyes;
• Itchy nose, mouth, or throat;
• Postnasal drip;
• Wheezing, Coughing;
• Tightness in the chest;
• Shortness of breath.