Cold viruses exist all year round, but they are much more common in colder months. A true cold has symptoms lasting up to ten days that include congestion, itchy eyes, scratchy throat, and watery eyes. However, what many consider a cold is actually allergies.
Summer allergies are most likely due to grass and tree pollens and outdoor mold. Doctors say that this spring was particularly bad for allergies, but that pollen counts are subsiding. Dr. Peter Greenspan, a pediatrician at Mass General Hospital for Children in Boston says, ‘If you tend to get those same symptoms every year around the same time, allergy is the probable cause.’
There isn't any kind of short-term cure for allergies or for colds. Both go away, either on their own in the case of colds, or when the offending pollens diminish as the season progresses. To relieve symptoms (for adults), Dr. Alexander Chiu, associate professor of otorhinolaryngology at the University of Pennsylvania School of Medicine in Philadelphia recommends saline irrigations through the nose