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How can I heal my split lip?

My lips got very dry and chapped and now the bottom one has split right in the middle. I can't seem to make it heal because it just splits back open. How can I heal it? Is there something I can do about my dry and chapped lips?
This sounds very painful! Split lips are not usually a major medical problem, but they can be a nuisance and they can take quite a while to heal up completely. The major cause of dry or chapped lips is mechanical irritation - most commonly, this means excessive licking or picking of the lips. Unfortunately, once the lips get irritated and dried out, the reflex is to constantly moisten them with the tongue. However, this repeated action actually makes the irritation worse and dries the lips out even more! In other words, it is important to break the cycle of repeated moisture and friction. You can do this first of all by making a conscious effort not to lick or pick at the affected area. Also, you can use a good chap stick, preferably one with menthol or other soothing agents in it, as these agents can decrease the itching and burning sensation that drives the urge to lick the lips constantly. Apply the chap stick at regular intervals throughout the day, and you should start to see a difference within a few days. Keep applying it, however, until the skin is completely healed up. If this issue persists, you should go see your primary care doctor for more advice.
This answer is for general informational purposes only and is not a substitute for professional medical advice.
If you think you may have a medical emergency, call your doctor or (in the United States) 911 immediately. Always seek the advice of your doctor before starting or changing treatment. Medical professionals who provide responses to health-related questions are intended third party beneficiaries with certain rights under ZocDoc’s Terms of Service.

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