I bought a carbon-steel wok, seasoned it, and it worked great for a couple weeks. Now however a small portion of the seasoning right in the very middle seems to have peeled off. While the sides are perfectly non-stick, the middle is, if anything, slightly sticky to the touch. I really hope I don't have to strip the seasoning and redo it from scratch. Any recommendations? Thanks!
Edit: I should also add that the metal underneath the peeled-off portion looks like the unseasoned wok, a light blueish grey.