It's up to you. If you're asking, will it help in the short term - no doubt! It's easier for us, easier for them...there's a reason babies like to nurse! :wink: He WILL become used to it, and you'll have to break the habit later... I have to say that I do it when she's sick or in pain, so do I think it's awful? No.
He's still fairly young, so it shouldn't be too hard to change back later, and when he's older, you can start using infant Motrin, which lasts much longer than Tylenol.