uuuuuuuuuuh, why is it so spicy?
well yeah thats a fert. burn if im not mistaken, that happens. don't worry. yeah i guess there is nothing much u can do besides trying to save whats left.
i hope u get some smokeable bud out of it and next time take a second look at the NPK and make sure u read the instructions given (and try 30% of it and look how the plant works with it, then you can increase it, even to 100%)
good luck anyways