This is such a tough situation, and our hearts go out to you. If you feel the denial or refusal is dementia-related, start by working with their healthcare provider. You may need to work through an advance directive and POA to keep the wheels moving so you can legally begin making decisions. In most cases, a parent’s denial or refusal is rooted in fear of aging and dying. That requires a tremendous amount of patience and calm compassion as you work with them via honest conversation.