How are colds and allergies the same? How are they different?
- Symptoms: Sometimes the symptoms of a cold and an airborne allergy are similar.
- Cause: A cold is caused by a virus. An allergy is caused by an immune reaction to allergens.
- Contagiousness: Colds are contagious; allergies are not.
- Timing: Colds tend to occur once in a while and last for a week or two. Allergies can be seasonal, year-round, or occur only on rare occasions if there is an exposure to the allergen. (16)
Is it a cold or an allergy? (16)
|General aches, pain||Slight||Never|
|Itchy eyes||Rare or never||Common|