Hello and welcome to Healthcare Magic. Thanks for your query.
From the descripion of your sister's psychiatric problems, it appears that she may be suffering from a
psychotic disorder, probably
schizophrenia. Schizophrenia is a chronic pschiatric illness where the patient can have
hallucinations (like hearing voices - the "talking to self" is actually the person's response to hearing voices), delusions, deterioration in personal, social and occupational functioning, etc.
In addition to the anti-epileptic medication (
Oxetol), she has been put on an anti-
psychotic medication (Residonia Plus). If her psychiatric symptoms are still not controlled, then you have you go for a follow up, to see if medication has to be increased or changed. It is important to understand that since this psychiatric problem is a chronic one, treatment can only control or decrease the symptoms, and not cure the illness completely. So, regualr medication and follow up is a must continuously.
Wish you all the best.
Regards,
Dr. Jonas Sundarakumar
Consultant Psychiatrist