10 month old has his first cold

My 10 month old son has a stuffy/runny nose, sneezing, coughing here and there, and he has diarrhea 😟 He woke up covered in mucus after only an hour of sleeping in his crib last night and he couldn't breathe well, so I held him and he slept propped up in my arms in our bed the rest of the night (no negative comments pls...I don't like the idea of co-sleeping but he couldn't sleep otherwise.) what are some remedies I could try? I have a humidifier and I've got the Tylenol on stand by (he has a tooth popping through too). Pic for attention!