The patient diagnosed with osteoarthritis reports achieving pain relief when usi

The patient diagnosed with osteoarthritis reports achieving pain relief when using an over-the-counter ointment on the affected areas. When assessing the patient’s knowledge of safe administration practices, which of the following principles should the nurse plan to include in the teaching?
1. Apply heat to the affected area after applying ointment.
2. Alternate heat and cold after ointment application.
3. Limit the use of ointment to 3-4 times per day.
4. Initial skin irritation is common, and will subside within a few weeks of initiating treatment.