重曹の使い方：とげ抜きに、色々なお手当にhttp://japanese.mercola.com/sites/articles/archive/2016/09/12/%E9%87%8D%E6%9B%B9%E3%81%AE%E8%87%AA%E7%84%B6%E7%99%82%E6%B3%95.aspx