I too would double check all the folds and crevices. Soaking in a bath doesn't do it sometimes you really need to pull apart the skin and wipe it all. But my oldest had a stinky ear when he was a little older 6 or so months, he had a build up of wax, didn't cause him any pain just stinky, we went to the dr and he pulled out a big chunk of yuck, I couldn't see it but when he looked with the ear thing he was able to see blockage,, he told me to stop cleaning his ears so much lol or more to stop cleaning deep inside I was pushing the wax further in and caused it to build up. If he isn't in any pain/fever I would wait till I got home.