Some kids just have excess ear wax. I heard it was harmless, although it could affect their hearing if its too thick. I also read that you should NOT clean them daily, it can compact the wax against the ear drum. Now if you are just cleaning the outer ear, thats fine, but a qtip inside...NO.
I do not know if the sweet oil will do anything for the wax, but they do make stuff to break it up, but it wont prevent his body from making more or too much. As for keeping it in his ear: cotton ball.
I have a question for you: does he get alot of ear infections? My son too has excess wax and normally has to have it scooped out in order to see his ear drum. 9times out of 10 its infected. I am starting to think all that wax is trapping moisture and infecting his ear. We are going to see an ENT in January and discuss tubes. I am considering putting him on a decongestant along w/ his antibiotics to clear up the fluid hopefully. Currently he is being treated for an infection that started mid October and has yet to clear up.
Rene: I just read your post and find that interesting. I wish it was true for my son, easy fix. HE doesnt drink ANY milk though, sooo...