My left-eye keeps watering and when it does...yellow pus comes-out.

I know it isn't pink-eye or stye...then what is it?

Pus is not good.

Contact your eye doctor and see if they have appts. for emergencies.

It might be that you might have allergies and the dust from outside might get into your eye. Another thing is does your eye get teary along with the yellow pus? Because that might play a factor in your eye problem. I know this because my mom gets allergies and swollen eyes and red eyes from time to time. When my mom gets red eyes she puts some Visine drops in her eyes and her eyes clear up a little. So my advice to you is until you can see your eye doctor get a bottle of Visine drops and hope that they clear up your eye problem a little
Good luck MrCleveland
Bestie

It still could be pink eye. But you do need to get in to see the doctor and get it cleared up.

Pus usually = infection. Don't screw around with your eyes. See a doctor.

I just googled "Yellow pus in eye' ! I will copy and paste !

Bacterial conjunctivitis, as the name indicates, is caused by bacterial infection and can be sight-threatening if not treated promptly. Eye discharge is usually thicker and more pus-like (purulent) in consistency than viral pink eye, and is commonly yellow, green or even gray.

Yeah, try to see a doctor, but if you can't because of the corona pandemic, I suggest going to the pharmacist at Rite Aid or Walgreens and asking their advice and maybe there is some over the counter medicine for this? But I'm thinking also if you can't get in to see a doctor in person, some doctors are doing phone appointments and if you describe the symptoms they can send a prescription over to the pharmacy for you!

Good luck to you. Hoping everything turns out well!;)