Careful with using povidone-iodine repeatedly on large areas of skin, as you can get quite a bit of iodine systemically absorbed into the body over time. I think it might be wise to dilute down this 10% solution of povidone-iodine to around a 1% solution, or even 0.2% solution, using water to dilute. More economical too.
I did a rough calculation showing that if you applied 1 ml of 0.2% solution of povidone-iodine to the skin, after some hours you will absorb about 100 mcg of iodine. That's acceptable, as high-dose iodine supplements are in the range of 15 mg = 15,000 mcg of iodine.
But if you used 1 ml of a 10% solution, then you would absorb about 5000 mcg on each application.
Note that you should not swallow povidone-iodine, as it is toxic, and may result in diarrhea. Whereas a regular tincture of iodine is non-toxic. But the reason povidone-iodine and not a regular tincture of iodine is used for disinfection purposes is because the former releases its iodine slowly over many hours, and this is why is continues to disinfect the skin it is applied to for several hours.