If you use bottles or pacifiers, you'll want to sterilize them before their first use and regularly afterward, but it's not necessary to sterilize them after every use.

When should you sterilize pacifiers before baby?

Pacifier: Anything that spends as much time in Baby's mouth as his pacifier does, if he's a binky-fan, should probably be pretty clean. The Mayo Clinic recommends sterilizing pacifiers for under-6-month-olds before each use, and cleaning with hot, soapy water before each use for children older than 6 months.

How often should you Sanitise dummy?

Keeping the dummy clean

Clean and sterilise your baby's dummies every day and keep them in their container when not in use. Never put a dummy in your mouth (to 'clean' it) and never put any food or other substance (such as honey) on a dummy. From about 6 months, your child will be more resistant to infections.