hi ive been on rogaine foam 2 weeks so far ,i get half a cap ful in my hand then put it on my scalp,it go to liquid,ive been gently rubbing the rogaine for a miniute or two so i gos white a bit but keep rubbing intul its dry ,is this correct ,or should i put the foam on let it go to liquid and let it dry on its own without really rubbing it into the scalp.it takes 15 min to dry if i hardly rub it in,and 2 miniute to dry if i massage the foam in completely.