Infection: Klacid is an antibiotic so it's use may well be affecting bacteria in your mouth that could be causing an infection. In addition, it has as a side effect nausea and stomach issues so it could be contributing to gastric reflux that could add to your issues. See your doctor and get evaluated for proper dosage and alternative medication possibilities. If your underlying infection is oral, dentist.
Answered 7/28/2013
5.2k views
Secondary infection: The antibiotic klacid is effectively treating some other infection. The tongue gets better because the other infection abates. You may have a gastro-intestinal problem or a naso-pharyngeal problem.
Answered 3/27/2013
5.2k views
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