Swollen wattle and eye plus discharge - my hen needs help!

I'm a first timer with chickens and really need help. All three of my hens seem to have some issues, but when I got up this morning, poor Brene, my buckeye, appears to be in dire straits. Her wattle is swollen below her beak and under her ear, and she also has a sore on her eye lid. It also looks like her lips are chapped - I don't know if that's from dehydration or a pecking problem. Finally, there is discharge in her eye - it looks foamy.

The other two hens may have some feet / leg issues... possibly bumblefoot, and another "I don't know what." I'm afraid they are all passing something around. They should have received all the vaccines before I picked them out from the hatchery.

Unfortunately none are laying yet, and they're 30 weeks old. Behaviorally they seem fine and they all get along, which is why I don't suspect this is a pecking injury. But I really don't know what to do! Please advise!