Should I Be Worried About The Unusual Pale Color In Feces After A Salmonella Treatment?

My 4 year old daughter recently had salmonella and was treated with a course of anti biotics for ten days. She recovered and its been a month since she first got ill. However I have noticed a number of times when she has done a poo that they have been unusually pale in colour. I was wondering if she may still have some problems although she seems well and back to normal. She has a good appetite.