How to ask for leave from the leader for a cold WeChat?

Ask for leave from the leader with a cold. WeChat copy is as follows:

Hello, leader, I'm sorry to bother you. I have a cold and feel a little sick. I need to rest and go to the hospital for examination. I want to take a sick day, and I hope it can be approved. During the leave time, I will ensure that the work is handed over properly and will not delay the progress of the team. Thank you very much for your understanding and support, and look forward to returning to work as soon as possible.