Final answer:
The nurse suggests examining the child's rash instead of using an over-the-counter topical corticosteroid preparation as the nurse does not believe the mother's description of the rash.
Step-by-step explanation:
The nurse suggests to the mother that her child's rash should be examined instead of using an over-the-counter topical corticosteroid preparation on the skin area because the nurse does not believe the mother's description of the rash. The nurse wants to make sure that the proper diagnosis is made and the correct treatment is given, as over-the-counter topical corticosteroid preparations are not suitable for all types of rashes.
If the nurse believes the mother's description of the rash, the nurse may suggest using an over-the-counter topical corticosteroid preparation if it is appropriate for the specific type and severity of the rash.