Looking for some advice on what to do for my 4 year old child as she has a very red eye. It started yesterday and looked slightly blood shot a a few bits of yellow gunk at the sides. The bits of gunk were small and the redness wasn't too bad. I suspected conjunctivitis but my nephew had a similar looking eye the week before and it only lasted a day then disappeared so I thought I would wait and see how it is today. She's woken up this morning with it much redder and the eye looks a big saggy. No gunk at all though. What am I best to do? I know conjunctivitis would be the pharmacist but I'm not 100 percent sure that what it is so would a optometrist be best? Or a doctor? TIA