Could you tell me what is the medication for curing a liver cyst?

DEPENDS ON CAUSE: Simple liver cyst, no treatment necessary, no medications available. If the cyst is due to an infection then appropriate anti-microbial.

They are harmless: Liver cysts are commonly seen on CT scans. They are often harmless and can be left alone. I would not worry about it or try to chase it any further as they are harmless...so you do not need to try to cure them...you can only create a bigger problem in doing so!!