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?

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

Use a topical lidocaine analgesic for cracked lips.

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

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