 Itchiness in the nose and throat and red watery eyes are usually more indicative of allergies versus colds. Also, seasonal allergies do not cause fever. If you have a fever, it's unlikely to be an allergy. Seasonal allergies also tend not to cause a wet cough or body aches and fatigue. Now, if it is allergies, antihistamine pills can be really helpful. So can nasal corticosteroids. But if you're still not finding relief, it might be worth getting an allergy test.