There are 3 type of treatment for hydatid cyst
Medical treatment: Its the first line of treatment. Anti-parasitic medicines (albendazole or mebendazole) are given for longer time (for upto 3 months).
Percutaneous treatment: Cyst is puncture under guidance of ultrasound then sclerosant (cyst wall damaging medicine) & protoscolicidal medicine is injected. This procedure is known as PAIR (Puncture, Aspiration of cyst content, Injection of protoscolicidal medicine and Re-aspiration of fluid. This treatment is suitable for univesicular type of hydatid cysts.
This treatment is not suitable for complicated hydatid cyst, deeply placed cyst or if cyst is close to major blood vessels of liver. In this situation, surgery is preferred treatment.
Surgery: Surgery is most preferred treatment for hydatid cyst. The cysts may have to be removed surgically when they do not respond to medical therapy or complications develop in the cysts. There are various types of surgical procedures described for treatment of hydatid cysts, the most complete removal is achieved by cysto-peri-cystectomy, which offers the best chance of cure from the infection, with least chances of recurrent infection.