I do not agree with only applying it for about 30-60 seconds. the whole point is to get the solution soaked in there and make sure it penetrates so it can actually work. if he only leaves it on for 30-60 seconds, thats just like rinsing it on there, which is probably not enough. i would say to soak it on for at least 5 minutes. it wont do any harm because we take it internally and think about it...it stays in our bodies all day. Also, it doesnt sound like he has a planters wart. it is a FUNGUS. He has foot fungus. His whole foot problem is because of fungus and the fungus is related to his immune system and his weakened immune system is related to he Hepatitus C. Its ALL related. I would definately SOAK my foot in the Miracle-Mineral-Supplement as well as take the mms internally, as well as stay away from as much bread as possible (yeast) and also no sugar. eat as many green vegetables as possible. With the Hep C and the foot fungal problem, its telling him his immune system is weak.I am wishing him good luck and God Bless.