Pics would help, but leave it alone -- it should be fine. If you had mature buds up there you probably burned off some of the trichs which is obviously undesirable, but nothing you can do about that now.
i have done this too many times they come back fine usually i like to add superthrive to my normal water anytime i cause stress to my plants. I also usually remove affected leaves sounds like you may have inadvertently topped your plant good luck