My 8yo DD had what I think was covid (as we all caught it) about a month ago. She had a cough, terribly runny nose, headaches and general aches and pains. She is otherwise fine now but her nose is still gunky; quite green and lots of snot when blowing on a daily basis. I literally have to take 4 or 5 tissues to blow her nose a couple times a day (it keeps coming when she blows!). She is not coughing and seems ok otherwise. Would you think this could be an infection in the sinuses, or just the illness petering out? Her chest sounds clear and she has no fever / headaches. Not sure what to do really. Thank you.