Neck Crud

My daughter has all sorts of folds in her skin that trap all sorts of stuff but it turns out that her neck, especially, is a magnet for crud. For the first couple of weeks, we didn't even think about cleaning the folds of her neck. We were careful about keeping her clean while she fed and, since we didn't see anything spill past her chin, all was good, right?

It turns out her neck is a breeding ground for bacteria that feast on the dribbles of sugary breastmilk that escape her bib and the burp cloth we keep around her neck at each feeding. My first clue of a problem was a blue cheese smell when I picked her up to kiss her. Imagine my surprise when I saw what looked like a yeast infection in the folds below her chin.

My sweetie and I have been doing our best to stay on top of it and wipe down her neck every day but the bacteria are still there. We had to give her a thorough scrub-down - after a bath! - this evening to clear some stuff away. Some days, it seems to get better. The redness largely disappears and the folds are mostly dry. On other days, it flares up again and we end up back where we started.

I think this is going to last until she's able to hold her head up, which won't be for another couple of months at least. Until then, we keep cleaning her with water and Witch Hazel, then dry her off. Lather, rinse, repeat. But it seems to be doing little good.

Any suggestions?