The incubation period—the time it takes symptoms to appear after a person becomes infected with the virus—can be 4 to 6 weeks. Symptoms of mononucleosis usually last for 1 to 4 weeks, but it might take as long as 2 months before you feel well enough to resume all of your normal activities.
Keeping this in view, can you be cured of mono?
There is no cure for mononucleosis. Because mono is caused by a virus, antibiotics such as penicillin won't help unless you have an additional infection like strep throat. In fact, some antibiotics can even cause a rash if you take them while you have mono.
How long does Mono take to go away?
The virus usually multiplies silently in the body for 30 to 50 days after infection. Once the fever appears, it often lasts for a week or two. If there are no complications, the major symptoms usually last for 2 to 4 weeks, and then gradually resolve.
How long is a person contagious when they have mono?
Health experts aren't sure how long people with mono stay contagious after symptoms are gone. They believe that people can spread the infection for many months after that — some studies show as long as 18 months. Then, the virus stays dormant (inactive) in the body for the rest of a person's life.