cockatiel poo

Question
Ok so everyone that has egg laying birds knows that their poo gets all nast when they are laying my question is Misty hasn't layed an egg in 8 days and still had huge nasty smelly poos! I was wondering how long after eggs it should take to return to normal??? I am thinking about taking her to the vet when she finishes the medicine he gave us that should be if it hasn't changed in a week cuz I was wondering if the medicine could cause her to be runny? Anyways I just need advice about how long it take's yalls birds to return to normal thanks

Answer
I'm sorry to have not gotten back to you sooner, but there was a problem on my end with the system.

Is Misty still having this problem?

What sort of food is she typically on?  How about fresh food?
 Is there a male ?  Why is she laying?