While caring for a toddler receiving oxygen via face mask, the nurse observes that the child's lips and nares are dry and cracked. Which intervention should the nurse implement?

Apply a petroleum jelly to the child's nose and lips.

Use a topical lidocaine analgesic for cracked lips.

Ask the mother what she usually uses on the child's lips and nose.

Use a water soluble lubricant on affected oral and nasal mucosa.