how to remove corn from feet

{"cid":"91218765","title":"OEM ODM Beauty Salon Feet Pumice Stone Pumice Stone Corn Removal","imgUrl":"https:\/\/img.chinax.com\/nimg\/1f\/d8\/c7a311e411b6343f324aa7d7a9ef-200x200-1.jpg","attrs":{"Price":"Negotiatial","Brand Name":"Yizhi Konjac","Model Number":"Feet Pumice Stone","Minimum Order Quantity":"300pcs","Delivery Time":"10-20 Days","Certification":"BSCI","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union","Packaging Details":"Standard Packages","Keyword":"Foot Scrubber Stone","Usage":"Foot Spa","Material":"Natual Raw Material Volcanic Pumice Stone","Color":"Mix Color","OEM ODM":"Aceeptable","Feature":"Durable"}}

{"cid":"91108744","title":"Better-step Lightwight Women Dibaetic Shoes,Soft Lining and Durable,dress style,match removable diabetic shoes insert","imgUrl":"https:\/\/img.chinax.com\/nimg\/c0\/40\/7fc69ab5b53e2c29a073dfc969d6-200x200-1.jpg","attrs":{"Price":"Contact me for the latest quotation","Brand Name":"Better-step","Model Number":"40409","Minimum Order Quantity":"500 pairs","Delivery Time":"30-45 days after receiving the deposit","Place of Origin":"China,Guangdong","Certification":"CE&FDA","Manufacturer":"JianXing","Packaging Details":"1 pcs\/box,10-20 boxes\/carton","Payment Terms":"L\/C D\/A D\/P T\/T Western Union MoneyGram","Supply Ability":"20000 pairs\/month","OEM":"Welcomed"}}