Mix sugar and margarine together and smear it over the whitlow and apply a bandage or plaster to form a poultice,this will draw out the infection.I had to have my big toenail removed by surgery when i was a child and found it very painful.
My brother also developed a whitlow later, on his finger but my parents used the above treatment after reading an old book on poultices and it worked. Since then my son and i have both used sugar and margarine on whitlows that developed on our fingers both cleared up within a day or two.