Killin' the -cillins

For a second time in the history of Clark, he has broken out in a rash two days after starting a round of amoxicillin. The doctor who treated him (during yet another trip to the urgent care clinic) said that he doesn't think that Clark is allergic per se, but he clearly has a reaction to amoxicillin and there's no point in giving it to him again in the future. Agreed.