The excessive mucus is most likely due to the viral
throatCancer - throat or larynx
Throat swab culture infection. Such viruses seldom respect boundaries and limit themselves, for example, to the
throatCancer - throat or larynx
Throat swab culture. They frequently spread from the
throatCancer - throat or larynx
Throat swab culture to the nose and sinuses; less so, to the ears. Unfortunately, the same can be said of many bacterially caused sore throats, including strep. If caused by a virus, as you suspect, once you note improvement that should quickly proceed to complete resolution and, with that a progressive reduction in mucus production. On the other hand, if the excessive mucus persists, that could be a sign of bacterial infection and an indication for antibiotic therapy.
Good luck.