Well, in my opinion, I think you have got a mild case of chemical keratitis. But you do not need too worry about it, for it will not be any emergency at this point and everything should be ok within one day. To relieve your symptom, you can use artificial tears as often as you can. Also, you can just prepare some cool teabags, and then put cool compresses on your eyes. In that way, I think it will decrease your burning. But if you notice a marked decrease in your vision, increasing pain or discharge, you should consult an ophthalmologist as soon as possible.