In South Asia, it was a custom to chew areca or betel nut and betel leaf among lovers because of the breath-freshening and stimulant drug properties of the mixture. Both the nut and the leaf are mild stimulants and can be addictive with repeated use. The betel nut will also cause dental decay and red or black staining of teeth when chewed. Both areca nut and betel leaf chewing, however, can cause premalignant lesions such as leukoplakia and submucous fibrosis, and are recognized risk factors for oral and oropharyngeal squamous cell carcinoma (oral cancer).Practitioners and purveyors of alternative medicine sell a vast range of products that claim to be beneficial in treating halitosis, including dietary supplements, vitamins, and  oral probiotics. Halitosis is often claimed to be a symptom of "candida hypersensitivity syndrome" or related diseases, and is claimed to be treatable with antifungal medications or alternative medications  to treat fungal infections. Research
In 1996, the International Society for Breath Odor Research (ISBOR) was formed to promote multidisciplinary research on all aspects of breath odours. References


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Ofloxacin is a quinolone antibiotic useful for the treatment of a number of bacterial infections. When taken by mouth or injection into a vein, these include pneumonia, cellulitis, urinary tract infections, 
prostatitis, plague, and certain types of infectious diarrhea. Other uses, along with other medications, include treating multidrug resistant tuberculosis. An eye drop may be used for a superficial bacterial infection of the eye and an ear drop may be used for otitis media when a hole in the ear drum is present.When taken by mouth, common side effects include vomiting, diarrhea, headache, and rash. Other serious side effect include tendon rupture, numbness due to nerve damage, seizures, and psychosis. Use in pregnancy is typically not recommended. Ofloxacin is in the fluoroquinolone family of medications. It works by interfering with the bacteriums DNA.Ofloxacin was patented in 1980 and approved for medical use in 1985. It is on the World Health Organizations List of Essential Medicines. Ofloxacin is available as a generic medication. In 2017, it was the 278th most commonly prescribed medication in the United States, with more than one million prescriptions. Medical uses
Ofloxacin is used in the treatment of bacterial infections such as:

Acute bacterial exacerbations of chronic obstructive pulmonary disease (COPD)
Community-acquired pneumonia
Uncomplicated skin and skin structure infections
Nongonococcal urethritis and cervicitis
Epididymitis
Mixed Infections of the urethra and cervix
Acute pelvic inflammatory disease
Uncomplicated cystitis
Complicated urinary tract infections
Prostatitis
Acute, uncomplicated urethral and cervical gonorrheaOfloxacin has not been shown to be effective in the treatment of syphilis. Ofloxacin is no longer considered a first-line treatment for gonorrhea, because of bacterial resistance.