Artificial tears is the generic name for any eyedrop used to moisten the ocular surface and supplement your own natural tear production.  They come in many different varieties.  I personally recommend using artificial tears of some kind every day a minimum of twice daily.  I recommend using a good, branded name tear drop and not the generic variety.
I would also recommend you avoid using drops that claim to relieve redness as your daily lubricating drop.  They are OK to use every once in a while, but used daily, they can make your eyes chronically red.
Allergy eyedrops should be used for allergy symptoms only, not for relieving dryness as they can cause decreased tear production and actually exacerbate dry eye symptoms.