My skin goes red and blotchy.

我的皮肤变红而且起了斑点。

A red blotchy rash.

红色斑疹。

Her face was blotchy and her eyes swollen.

她满脸斑痕，眼睛肿胀。

They are blotchy blood red. They smell like decaying flesh.

花是到处带有污点的血红色的，闻起来像腐肉。

Blotchy, heavy clouds are stacked like anvils above a purple horizon.

浓云成块堆积着，如同悬挂在紫色地平线上的一块块铁砧。