Just got a yellow discharge in eyes. I think it is conjunctivitis. What else could it be?

Yellow discharge. Could be conjunctivitis (viral if recent cold & a lot of eye itching) or due to a dry or unstable tear film can be from clogged meibomian glands, demodex, staph on lashes; rarely from immune issue. See eyedoc2020@blogspot.com "lid hygiene" on how to use warm compresses, diluted tea tree oil wiping, & artificial tears to naturally help relieve sx. May need Rx from eyeMD for antibiotic.