I thought you were not supposed to feed the eggs back to the chickens if treating with antibiotics. I don't know but I thought I read that on here (BYC). Maybe it was the worming medication. I don't know. Just thought I would mention it if anyone knows for sure.
I look at it like this, if you feed them back after treating them, you are just extending the meds in their system. Doesn't make sense, you are reducing even if it is a trace amount. Toss them for the two weeks and start eating again or feeding them back.