They also may experience tingling and numbness in the affected areas. If these attacks continue, they can be painful or cause ulceration of the skin. There is some evidence that thermal biofeedback is useful for treatment of Raynaud's disease. While other approaches may be helpful for treatment of Raynaud's disease, they have not been evaluated scientifically in the same way as the treatments listed here. Because of the negative health effects of cigarettes on the smoker and on others, many people try to quit.
Nicotine addiction is hard to overcome.
Most people who try to stop smoking return to cigarettes within a year. Some evidence suggests that scheduled, reduced smoking plus multi-component behavior therapy is useful for smoking cessation. While other psychological approaches may be helpful for smoking cessation, they have not been evaluated scientifically in the same way as the treatments listed here.