My daughter has not had a voice for 9 weeks only a whisper?

Hi my daughter has not had a voice for 9 weeks only a whisper she has had every treatment the doctor can give and has been referred to ent doctors but its a very long waiting time and shes in pain something under her chin is a bit swollen but her neck is in pain it all started with a simple sore throat what was put down to a virus but after 4 weeks had passed bloods where took all clear she is also getting mucus coming up and some times blood in it what should she do in the mean time of waiting on a appointment she is 19 she has no temperature and no sickness just no voice and neck pain