Coughing

18 month old been coughing for four weeks I took her to the gp at 2 week mark, prescribed inhaler and said probably viral and viral wheeze so guess he didn’t know. She stoped coughing for 3 days over the weekend and started back up again this week; I’m just wondering do you think it’s worth going back to the gp, I want to take her back but just hate the fact of them telling me crap again… the coughs awful it’s been wet and with phlegm the whole time and she has thick green snot 🤓 otherwise she is well in herself..