If you feel any medical or physical symptoms related to vibration (such as tingling, numbness, and white or blue fingers), seek medical advice as soon as possible. Do not smoke during use. Nico2. tine reduces the blood supply to the hands and fingers, increasing the risk of vibration-related injury. Wear suitable gloves to reduce the 3. vibration effects on the user. Use tools with the lowest vibration 4. when there is a choice between different processes. Include vibration-free periods each 5.