Q. My dogs eyelids and around the eye are red and swollen looking. What could be the cause of this?
DAVID ELBEZE, DVM, MRCVS
A. there could be more than one cause depending on age, breed and other factors. Demodicosis (mite infestation) typically starts with these symptoms (especially in young dogs) so I would suggest to try and rule this out first (these mites are easily seen under the microscope after skin scraping). Another very common cause is an allergic reaction, it could be food but it's more likely to be something in the environment (plant, insects, cleaning solution...).