Photo Credit: Lilun_Li / istockphoto.com

3. Pets

Furry and feathered pets shed what’s known as dander – tiny specks of skin – that can cause reactions in people who are susceptible. This dander can come from many animals, but the main culprits include rodents, birds, dogs, and cats (feline dander is actually the worst of them all for many people). On top of this, the animal’s saliva and natural oil secretions can trigger asthma symptoms, so it’s not enough to keep your pets brushed and bathed. If your pet is an asthma trigger, the easiest preventative measure is to find the pet a new home; if that’s not an option, be sure the pet stays out of the bedroom and off the furniture.

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