Can Adults Develop Seasonal Allergies?

Yes, adults of any age can acquire environmental allergies. Asthma can also occur in adulthood. A runny nose, on the other hand, isn’t usually an indication of allergies. Older adults may have a runny nose because of age-related physical changes; for example, some people have hyperactive tear ducts or nasal secretions as they age (this is known as cholinergic hyperactivity). A runny nose can also be a side effect of several medications used to treat other problems such as prostate enlargement, high blood pressure, or erectile dysfunction.