To use, rub Vicks VapoRub on the affected toenails many times per day. Camphor oil is effective as a decongestant and cough suppressant. Vapor rub is most effective in alleviating nocturnal cough ...
A few studies have found that vapor rub containing menthol, eucalyptus and camphor, when applied to the neck and chest, significantly improved sleep in children and adults with cold symptoms ...
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