Some symptoms of allergies are similar to that of flu, such as sneezing, nasal congestion, running nose and the like. Many people, therefore, wrongly think that it is a flu instead of allergies. If it is a flu, there are symptoms like headache, muscle pains and fever but they usually go away in a few days. However, the symptoms of allergies will probably continue under certain specific conditions.

Allergic rhinitis is a common respiratory allergy. The symptoms usually appear in seasons like spring, summer and autumn when pollen is around. Some people may often stay close to ventilators where they are exposed to dust, mites and fungus. As a result, they easily got allergies. Some people have allergies because they have contact with the hairs of dogs or cats. There are also people who got allergies all the times but it is unable to find the real causes.

You can take a look at the following table to differentiate an allergy from a flu:

	Allergy	Flu
Stuffy nose	Common	Common
Running nose	Common	Common
Sneezing	Common and Frequent	Common
Itchy face	Common	Rare
Cough	Common	Common (dry coughing)
Feeling tired easily	Common	Common
Fever, Chills	None	Common
Headache	Rare / None	Common
Body aches	Rare	Common
How long the symptoms last?	Persist or even last for a very long period of time	Serious but last for only a few days