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They are too young to expose to any chemicals, beside mabango naman sila kasi baby pa. Kahit nga breath nila ang bango parang air freshener. Hehe. Delay mo muna, especially ung ibang powder can cause asthma/allergic rhinitis lalo na if may history family niyo pwede matrigger yung kay baby. But depende pa rin sa inyo, you can ask your pedia also. :)