Seizure in a premature baby. Ml?

Respected Doctor, My baby had a seizure for about 30 seconds when he was 1 year and 10 months old, and he had a high fever (103°F) at that time. He was admitted to the hospital, and an EEG was done which came out positive. MRI showed: "Few discrete symmetric T2/FLAIR hyperintensities are seen in bilateral periventricular white matter in peritrigonal region with normally myelinated low T2 signal white matter between these high signal patches and lateral ventricles." He was prescribed Levera syrup (1 ml twice daily). Now it has been 1 year with no seizure recurrence. He is physically active and growing well. My humble question is — can we stop Levera syrup now, or should we continue the medication ( medicine quantity ml ?) ? My child is currently 2 years and 10 months old.