A bathing preparation comprises a composition which, when dissolved in water, generates carbon dioxide, the composition being physically bound together as a tablet, with a colloidal material. The effervescence produced by dissolving the tablet improves dispersion of the colloidal material, and maintaining said colloidal material in dispersed form in the water for a longer period of time. The bathing preparation gives the advantages of carbon dioxide bathing, as well as an excellent treatment effect for skin inflammation. An acid, carbonate salt, and a colloidal material such as colloidal oatmeal may be tableted to provide an effective, easily stored and handled product.
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