Every morning I would break out in a sweat.

每天早上我都会突然满身大汗。

He may break out in a rash when he eats these nuts.

他吃了这些坚果以后可能会长出疹子。

A person who is allergic to cashews may break out in a rash when he consumes these nuts.

对腰果过敏的人吃了这些坚果可能会出疹子。

I break out in a cold sweat.

我吓出了一身冷汗。

Eg. This made me break out in a cold sweat.

这吓得我出了一身冷汗。