Coughing for 5 weeks..

Anyone else have this?! I’m miserable! It started off with coughing up green mucus. Went to my OBGYN and she prescribed a 5 day z-pak of antibiotics. I’ve tried Robitussin DM syrup & cough drops. It’s still here but no more green mucus. It keeps me awake all night and I’m coughing so hard I’m gagging. I work in a quiet office and I’m over here hacking up a lung all day every day, every time i breathe. It feels like there’s just a ball of mucus sitting in my throat but nothing is coming up anymore. My daughter had croup a month ago but i don’t know if it has anything to do with this or not. Help!!!