Goopy eye/extra cranky

So my one month old had a green goopy eye earlier in the week. It went away and I figured it was just a blocked tear duct or something had aggregated it. Well the past two days she's been cranky when she wakes up and the only thing that soothes her is cranky and more fussy than normal when she wakes up and stays that way until she falls back to sleep. And now tonight the goopy eye has come back. She's not running fever and other than the symptoms above and a lot of sneezing and slightly stuffy nose she seems okay. Thoughts?