Yes .... Homoeopathy can treat drug and drinking addiction. A whole history of the patient will be needed to understand the case.
But to get treated for such cases, the patient himself should be determined and willing to follow the advice and instructions given along with the homoeopathic medicines.
Next Steps
Visit to a nearby Homoeopath.
Health Tips
The person might find the advice and instructions difficult initially but if he/she sticks to the instructions and advice it can get rid of it.