Conversation: The conversation between human and AI assistant.
[|Human|] I stepped off an 8 drop off and have a grade three sprain. Two weeks after the injury I have episodic periods of severe itching where previously the tissue was severely eccymotic. The original injury had deep purple bruising half way to the knee, 3+ edema, numbness at the skin surface, and joint pain. The ankle has both lateral and medial injuries. I have been in a cast boot. After that background, I would like to know: is the itching expected and normal, when is it safe to walk on the ankle using the cast boot, and is there anything I should avoid to prevent worsening this.
[|AI|]  Hi, Yes, itching is a normal phenomenon. It occurs because of continuous friction and because of the healing process, .there is nothing to worry about You need to keep cast boot for 2-3 weeks and then gradually shifts back to normal. Avoid overstretching after the removal of cast boot. Yes, you can walk with cast boot, but only indoors. Prevent hanging your legs and keep them elevated whenever possible. Take care. Hope I have answered your question. Let me know if I can assist you further.