There is a yellow clump in my dog’s eye what is it?

A yellow foreign object in a dog’s eye is likely purulent eye discharge, possibly from a bacterial infection caused by the dog scratching itself or irritation, leading to conjunctivitis or keratitis. First use a cleansing eye drop to remove secretions, then gently wipe them away; if it wipes off, it is usually eye discharge.

Then apply anti-inflammatory eye drops or ointment to control inflammation. If the infection is severe, also give pet antibiotic tablets to prevent secondary infection. If the dog scratches its eye, put on an Elizabethan collar to avoid further damage. If there is no improvement after three days of medication, take the dog to a veterinary clinic for examination and treatment.