Complex sentence: Dinoire will have to take the drugs the rest of her life, raising the question of whether she can do so reliably; a Boston doctor said if she stopped, it would be a "disaster", with the new face sloughing off over time.
Split into simpler sentences: Dinoire will have to take the drugs the rest of her life. A Boston doctor said if she stopped taking drugs, her scenario would be a "disaster", with the new face sloughing off over time.