Allergy symptoms can range from mild to severe and some allergies can cause multiple symptoms in an individual. Allergies may feel like a cold, but are the result of an environmental or food irritant, not of a virus. Nasal allergy symptoms can be caused by a variety of environmental allergens, both indoor (dust mites, pets, and pests) and outdoor (pollens). Mold spores, which … [Read more...] about Allergy Symptoms