Rush, especially if the patient has taken antibiotics, like ampicillin or amoxicillin is a classic symptom for mononucleosis. Other symptoms include: sore throat, high fever, enlarged lymph nodes, muscle ache, headache. Enlarged spleen might also be found.
Atypical lymphocytosis, elevated Ebstein-Barr titers are expected results from diagnostic tests in mononucleosis.
Since it is caused by a virus, there is no specific treatment. Bed rest, fever control and pain control are usually the only measures that can be done.