Final answer:
The correct use of Permethrin 5% for scabies is to apply it to the entire body, including the face, leaving it on the skin for 8 to 14 hours before washing off, and a repeat application after one week may be required.
Step-by-step explanation:
Appropriate Instructions for Permethrin Use
The correct instruction for the use of Permethrin 5% (Elimite) cream for a 4-year-old child with scabies is to apply the cream to the entire body, including the face. Permethrin is a topical cream used specifically for the treatment of scabies, a condition caused by tiny mites that infest and irritate the skin. It is typically applied to all areas of the body from the neck down, and it's important to leave the cream on the skin for about 8 to 14 hours before washing it off. In children younger than 2 years and in older adults, it is also recommended to apply the cream to the scalp and face. A repeat application may be necessary in one week if symptoms persist, but it's crucial to follow the doctor's instructions regarding reapplication.