By Mayo Clinic News Network

If you tend to get "colds" that develop suddenly and occur at the same time every year, it's possible that you actually have seasonal allergies. Although colds and seasonal allergies may share some of the same symptoms, they are very different diseases.

Common colds are caused by viruses, while seasonal allergies are immune system responses triggered by exposure to an allergen. Treatment of a common cold may include rest, pain relievers and over-the-counter cold remedies, such as decongestants. Treatment of seasonal allergies may include over-the-counter or prescription antihistamines, nasal steroid sprays and decongestants, and avoidance of exposure to allergens where possible.

Symptom check: Is it a cold or allergy?
SymptomColdAllergy
CoughUsuallySometimes
General aches and painsSometimesNever
FatigueSometimesSometimes
Itchy eyesRarelyUsually
SneezingUsuallyUsually
Sore throatUsuallySometimes
Runny noseUsuallyUsually
Stuffy noseUsuallyUsually
FeverRarelyNever

Source: http://www.mayoclinic.org/diseases-conditions/common-cold/expert-answers/common-cold/faq-20057857?footprints=mine