Yes. Determine if reflexive tearing (thus treat the etiology, remove inciting factor or improve the tear film or make more tears), or obstruction of the tear drain (thus re-open it or bypass it), or any underlying primary or secondary cause. Excessive tearing is usually when you have to carry a tissue box and the tears are always spilling over like crying.
Usually yes. It is important to discover the reason for the wateriness: is it allergy, chronic irritation, dry eye (!), tear duct blockage or other problem. Once this is clear then treatment can be started - usually, this is very effective.
Try others. Try zaditor (ketotifen) or naphcona. If they don't work, see your dr. There are several prescription eye drops to try. Not all work for each person. Also use natural tears during the day.
Try Zaditor (ketotifen) drops. And use natural tears during the day to rinse out the pollen dust etc. Or try naphcona. Both come as genetics =cheaper just as good.
Need diagnosis! It sound like allergies, but you need t be seen and properly diagnosed, before treatment can be implemented. See an ophthalmologist.
Red eyes. Are usually do to inflammation which is the basis to the watering. The inflammation disrupts tears production making the eyes dry. This dryness sends a signal to the brain saying the eye is dry, more tears result. Stop that signal by using artificial tear drops, this can help with the redness also. Restasis is also an option.
Try others. First be sure it is an allergy. Then see your dr. There are several eye drops to try. Not all work for each person. Also use natural tears during the day.
Time. Most viral conjunctivitis resolves on its own. Depending on the cause, ophthalmologists can help you. Otherwise supportive therapy for a few weeks like artificial tears, hand hygiene, etc.
Viral infections. The combination of runny nose and watery eyes, plus sore throat is highly suggestive of a viral infection - for which there is no known treatment that will cure it. Standard advice is to stay well hydrated (drink plenty of fluids), take decongestants such as Pseudoephedrine to minimize the runny nose, and Acetaminophen or Ibuprofen for the pain. Then just add a tincture of time.