Sneezing and drooling are the symptoms of a viral infection. It could be flu or cold. If the redness around the eye is followed by tears, it can be a symptom of Conjunctivitis, or inflammation of the eye membrane. But if the eyelids starts swelling after sometime, then it can be referred to "cherry eye" or inflammation of the third eyelid (nictitating membrane). You should take your pet to a vet for proper check up.
