Summer colds can be very annoying but how do you determine whether you have a cold, or have seasonal allergy? Runny nose, postnasal drip (the feeling of drainage going down the back of the throat), nasal congestion and sneezing are frequent complaints of allergy sufferers. Unfortunately all of these symptoms may also occur in the setting of a viral upper respiratory infection (common cold).

When Symptoms Occur and How Long They Last is Important
Common colds are not nearly as common in the...