Final answer:
To address itching under a cast, avoid inserting objects to scratch, use a cast cooler or a hairdryer on a cool setting for relief, and contact a healthcare provider if discomfort persists or other symptoms appear.
Step-by-step explanation:
If you are experiencing itching under a cast, it is important not to insert any objects into the cast to scratch, as this could cause injury or infection. Instead, try using a cast cooler or blowing cool air from a hairdryer on a cool setting into the cast. If the itching persists or you notice a foul odor, skin irritation, or severe discomfort, it is essential to contact your healthcare provider. They may recommend cast adjustment or provide specialized products designed for relief under casts.