Suzy,(posted 9657 days ago)Talked to my ggrandmother (99 yrs young), she said to put about 1/2" of water in the skillet with a little soap and boil it good. This is how she cleans hers. She said that if you've lost the seasoning completely, that you can bake it with a light coating of oil on the inside and outside. But for a better seasoning, she said to do it in an open fire. (We did this this past fall, so far I've not managed to unseason any of them.) She also said that if you have a piece of castiron that is rusted to use "creek sand" and water to scrub it good, then boil it out on the stovetop with soap and water, then finally season it in the oven/open fire. One last thing she said to do, everytime you season it, when you put your oil in the skillet, add a little salt. When your done with the seasoning, wipe the salt out.
Hope this helps,
Janette