The nurse is providing instructions to a patient with a plaster cast on the left arm. To relieve itching under the cast, the patient should:
• Forceful air can relieve itching inside the cast. Since hot air can burn the skin under the cast, cool air should be used instead. This should not be done while the cast is still drying.
• Objects should never be placed
• Plaster casts should be protected against water and moisture, as this can break down the cast.
• Applying pressure on the cast may cause cast breakdown.