My husband did a hot wing challenge. he can't stop vomiting and is shacking with chills. what should he do?

Consider ER: Needs evaluation. Though condition could be benign evaluation for serious GI conditions like ruptured peptic ulcer is warranted

See md: Could be reaction to the hot spices caUTsong vomiting, BUT the chills along with the vomiting could be sign of "food poisoning", i.e. bacterial infection/toxin exposure due to under cooked chicken, contaminated sauce,etc. Other causes possible. See MD