My 25 Months (2 Years Old) Son Swallowed A Whole

My 25 months (2 years old) son swallowed a whole candy. He was choking and I was trying to get the candy out of her throat but couldn't get it. So I ask him to drink water not too plenty after a seconds he feel fine already and I nurse him. And he also ate Chicharon. Is that okay already? I mean is he okay already? What should I do? Pls reply ASAP. Thanks.