Penmanship Faculties: Vale Short Stories, Book 15 (Unabridged‪)‬

Went to the doctor, complained about my immune system, asked about supplements. He smirked. Asked him if something's funny. He called American supplements ignorant. Said he had something better, just approved. "Nanoimmunity bot". Looked like aspirin. Dumb price, but insurance would pay, so...

It engineers new paths toward health, teaches my body to adapt to "health threats". He swore up and down it'd saved several trauma victims. "Like that self-healing plastic".

Why not? Couldn't hurt, could it? After all, it's just medicine, right?