He tends to break out in hives when he's stressed.
break out of
Frequency:
60
%
The prisoners managed to break out of their cells.
break out into
Frequency:
50
%
The children broke out into laughter at the funny clown.
Idiomatic Expressions for break out
Phrase: break out the champagne
Meaning: to celebrate or mark a special occasion with champagne
Usage: They broke out the champagne to celebrate their anniversary.