A Bad Rash
When your skin is so angry it's throwing a tantrum. It's red, it's swollen, and it probably wants a snack.
My cousin's rash looked like a tomato explosion. That's a bad rash.
My friend said his leg was a bad rash. I said I believe him. I can see it from here.
My cat got a bad rash from scratching the couch. Now the couch looks like it's been in a war.