MANILA, Philippines —The Department of Health (DOH) urged the public to use a wet cloth as an alternative to N95 face masks, following the reported shortage after the Mayon Volcano eruption on May 2.In a statement Sunday, the DOH said using a wet handkerchief or cloth, wearing a regular face mask that fully covers the nose and mouth, or doubling up on standard face masks for added protection can help reduce exposure to ashfall.The agency explain…