I just ate some fish, knowing that I would have this reaction, but it was just too tempting. Anyway, my throat (probably my esophagus as I am breathing normally) has swelled up, making it hard to swallow. In addition, I am feeling a bit nauseous and having chest pains. Are there any quick, instant home remedies I can try? I don't have much in the way of medication other than some Advil and Benadryl.