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Why are my lips cracked in the corners?

I am a 44 year old female in good health. I have had cracks in the corners of my mouth for over a month now. They will not go away. I have tried all kinds of lip moisturizers (Blistex, Chapstick, Carmex and Vaseline) but none fix the problem for long. At the worst, they bleed and hurt continually. At best it is a major annoyance. Eating salt or opening my mouth wide to take a bite of apple or eat a sandwich makes it worse. This really hurts!
What you are dealing with is a condition called angular cheilitis, which is cracking and fissuring at the corners of the mouth. Keeping the areas moisturized, as you are trying to do with chapsticks is important, but often this is not sufficient to clear it up in chronic cases. Many cases of angular cheilitis are actually caused by colonization of the skin around the mouth by yeast organism ("thrush"). Because of this, a topical antifungal cream is often quite effective at clearing it up. You could even try this as an experiment using an over the counter cream from your local pharmacy or consult with your primary care doctor. Rarely, cases of angular cheilitis can be caused by other bacterial species and can require antibiotic treatment. Similarly, sometimes angular cheilitis is caused by deficiencies in certain nutrients, such as B vitamins. Also, sometimes cold sores caused by the herpes virus can be mistaken for angular cheilitis. I would suggest continuing with your regular lip care moisturizing routine and consider trying an antifungal ointment. If this does not work you will definitely want to see your primary care doctor to make sure nothing else is going on or another form of treatment is not needed.
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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