I just finished doing prazi which is what you have purchased and I was tested for brain cysts before being prescribed so I would opt for something else if I were you to be cautious. Prazi is for flukes and can be hard on the liver do not take with acetominophin or like products. Vermox is probably the most neutral of the medications for parasites but it is not as broad spectrum as some of the others.Most anti parasites work only for the digestive track gut area and if you have any issues anywhere else they do not help with those but will reduce amount or kill the ones in your gut.You should get some sort of diagnosis so you know what you are dealing with . You can start a general protocol is suppose using herbals diet etc Just taking anything presc wise and not knowing what it is you are treating may cause problems that you will have to deal with .Do you have access to testing there besides ova and stool. It is often difficult to get a diagnosis from that test due to the life cycles. Best of health and good luck