Does he have teeth yet? If he is teething than I would say it maybe okay. But the thing is how sterile is your cloth?

I personally won't be putting anything in Jovie's mouth until she shows sign of a tooth popping through... but thats just me. I suppose you want them to get used to it, but they do soon enough.

Matilda didn't have teeth until she was 13 months. At 9 months I used to rub a cloth over her gums in hopes to encourage a tooth out LOL but it didn't do anything. Once she had her first tooth we made a game of rubbing a soft brush over it at night. We had a toothbrush for her bath & one for bedtime.