For body itch/odour (of fungal causes), take regular scalding-hot baths w/ 5-15 drops of Tea Tree Oil dissolved in a tablespoon of NON-iodized table salt (the only case when it's a good thing) and stirred into the water.
Using iodized salt and/or more than 15 drops of TTO will give you insane body itch for an hour and make you scratch like a deranged cokehead, so don't do it.