Forehead numbness can be a symptom of "paraesthesia," a tingling sensation caused by too much strain on a nerve. Almost everyone has experienced transitory paresthesia, which usually resolves on its own and does not require treatment. Numbness in the forehead might occasionally signify a major health problem. If the feeling lasts longer than 24 hours or if you experience pain along with your numbness, see a doctor immediately. Numbness in the forehead is commonly due to stress, especially mental stress. This type of paraesthesia often goes away after some rest and relaxation. If the feeling persists for more than a few days, though, it could be a sign of something more serious. Your primary care physician can help diagnose other possible causes of numbness in the forehead including multiple sclerosis, thyroid problems, vitamin deficiencies, diabetes, alcohol abuse, and chronic infection. He or she may also suggest some simple treatments for you depending on the cause of your problem. If you are worried about the cause of your numbness, see your doctor. He or she will conduct an examination that includes asking questions about your symptoms and performing tests (such as blood work) to determine the source of the problem. Stress management techniques such as meditation or yoga may help relieve tension long enough to reduce the frequency of paraesthesias. If these methods don't work for you, talk with your doctor about medications or alternative treatments that may be recommended for you.