Gungy eye in toddler

[greeneyeshadow]

DS 20 months has a cold and has a gungy eye.
I used to squirt a little breastmilk when this happened before but I'm not b/f any more.
What's best to do? have been wiping away with a tissue but worried about spreading infection..
TIA

[Uspy]

My baby just had this, use cooled down boilt salt water to wipe frequently and if doesn't clear up get doctor to prescribe eye drops.