彼の顔に吹き出物ができた。

tbd

A rash appeared on his face.

吹き出物が彼女の首に出た。

tbd

A rash broke out on her neck.

暑い季節には息子の皮膚に吹き出物がでやすい。

tbd

During the hot season, my son's skin breaks out easily.