You are not using white vinegar directly soak it that acidic how much, will corrode the skin of the ha, do not soak again, too much stimulation, your muscles can not stand, stop soaking it, the night with warm water and soft wash feet, cracking if not very serious, after a few days will be cured, if the seriousness of you go to the consultation a little bit of medicine, vinegar soak your feet in proportion to the proportion of the vinegar soak ha! This can be sterilized, do not use white vinegar directly, yo!