What causes a numb lower lip?

Answer

Better Medicine states that common causes of numb lips include food allergies, medication side effects, cold temperature, tetany, and Raynaud’s disease. Tetany is a condition that involves muscle contractions due to low levels of calcium in the blood, while Raynaud’s disease refers to spasms of tiny blood vessels in the fingers and toes.

Better Medicine explains that numb lips can develop suddenly or gradually and may reveal itself as chronic. Chronic medical conditions that cause numb lips include cancer, toxic chemical exposure, Lyme disease, ischemia, hypothyroidism, autoimmune nerve disorder and multiple sclerosis. In certain cases, numb lips can be a symptom of a life-threatening condition; these conditions include: ingestion of toxic chemicals, plants or mushrooms, hyperventilation, and anaphylaxis, a fatal allergic reaction.

According to New Health Guide, other causes that result in numbness of the lips and other specific parts of the face include panic attacks, migraines, anxiety, depression and prescription of certain drugs.

In discussing treatments for lip numbness, Med-Health suggests avoiding foods that cause an allergic reaction and any drug that causes numbness. In addition, application of petroleum jelly may be helpful, especially when the numbness is caused by cold temperatures. However, Med-Health encourages visiting a doctor as the best course of action to rule out the various diseases and conditions associated with lip numbness.

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