Beside medical pills and diagnosis, there exist good tips, you will rarely hear from your doctor. They are not allmighty, but often can really help, because they are proven by ages. The advices I call "Herbswoman advice". Here are some of them to use with mononucleosis.
Liver function enhanceres
There are no medicaments to cure the mononucleosis. But... there are preparations that help the liver to regenerate. We are talking about teas, sirops, alimentation supplements.
In most of them you can find the extract of Marian Thistle (Silybum marianum) in combination with other herbs extracts.