Answer by  
                                                                                          kalkidd1 (87)
                                                            
                          
                          
                                                           Stopping the spread depends highly on the cause - if caused by friction or moisture wear dry, clean clothing (especially the foot area, shoes should fit well) ; if chemical, take precautions to protect the skin; If sunburn, wear sunscreen. Try not to open blisters, keep them clean and protected.