My father is suffering from easofeagal cancer which is in advance stage. We consulted a Homeopath who has prsribed him medication for a month... My father chemotherapy is due to start... My question is whether we can proceed with both the treatments simultaneosly.
No, you should not take both treatment together. Either of the treatments, you have to choose. This is because, possible interactions with Chat Doctor.  I advise, strongly to ahead with chemotherapy, rather than homeopath, become, former has more evidence of control of the disease rather than later.