Homoeopathy does not provide disease-specific treatments. Parkinson's is a neurological disorder, try to see how can a homoeopathic medicine treat a neurological disease as it doesn't even have conducted any studies in this area. Neurology and psychiatry medicines are evidence-based and are validated and approved after lot of researches. Homoeopathy is totally opposite.  It is based on belief system, not on empirical literature. There are areas of brain which get effected during parkinson's or alzhiemer's disease. Allopathic medicines work best in these cases. Not even yoga, ayurveda or naturopathy. Ayurveda being one of the popular therapies can also not be prescribed without consideration, it also doesnt have much empirical basis, irrespective of what Ramdev baba claims. Thats why he has recently invested around 1000 crores in setting a lab at Haridwar to investigate yogic and ayurvedic treatments. So kindly beleive the doctors, you are emotional for your mother thats why you are concerned about her condition. You want best possible treatments for her. In this attempt, you need to first get properly informed and educated about parkinson's / psychiatric disorder that your mother is experiencing. This will help you in overcoming your fears and worries. Proper knowledge about her condition and teeatment can give you proper direction.

Please dont shift to homeopathy. It will be disastrous. Please see your neurologist and psychiatrist and talk to them about your concerns.