Hi! I'm an amateur and must have used my pan incorrectly, and would like to ask some directions to fix my specific case.
Once after cooking with it I washed it with hot water, dried it, and put it on the oven to make sure its completely dry. I added some oil too. Unfortunatelly I forgot about it, and came back when it was already smoking, and having that huge spot on the right side of the image. The pan wasn't completely on a flat surface, so most of the oil flowed on the right side. Also a lump of oil(?) formed at the bottom of the spot, which I could remove with hot water, and non-metal scrubber.
I tried searching online for a solution, but I'm not 100% sure what this exact case is, and which solution to try.
Scrub it clean with a metal scrubber and soap then reseason the pan. That burned oil needs to come off. I've never found cast iron pans to be too delicate.
Too much oil. Make the coat of oil nearly invisible, then season upside down so it can’t pool up like that. The sticky spot will get better. Just use it or season it again. The good ol’ “cook some bacon in it.”
I will put my pan on the stovetop at the highest level and use that to dry. Then I'll wipe a couple of layers of oil with a good paper towel. Usually does the trick if I wash it within an hour or so after cooking. But if it goes in the oven, it is upside down. No oil will pool that way.