Dermatology Questions? Ask an Online Dermatologist.
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Are you or your husband taking medicines like aspirin?
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Some people may develop bluish discoloration of the lips and skin. This is due to more production of the red blood cells by the body due to relative lack of oxygen. This is physiological change. Please see this authentic reference resource and read under the heading (which is highlighted under the Diagnosis), "Chronic mountain sickness."
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Wish you a very happy, prosperous, healthy and safe new year 2017.