I have been craving that which I know will make me sick.

Already,
The mere thought has my stomach roiling,
Insides twisting in displeasure,
Heart pounding out its discomfort,
Head aching in protest;
My fever keeps climbing
But I can't take a hint,
For it seems there's no proper immune response
For desire,
No thorough little antibodies to drive the thought away,
Just a full body reaction,
A rebellion of the senses,
Near anaphylaxis;

It would seem that I'm allergic to you.

But Benadryl and epinephrine are of no use to me
Since it's this wanting that's the problem,
Stumbling over myself just to see you smile,
All the while tying my intestines into impossible knots.
I know that you're no good for me,
But like a dizzy, desperate ******,
I can't cut myself off,
Can't force myself to stop chasing you
Though you cause my airways to constrict.