Questions about the patch- also any advice please comment

-Can you go to any sexual health clinic to get it?

-Does it need to be prescribed ?

-Do you wear it in the bath/ have water on it ?

-Can you apply it to more secret parts of your body, such as bum cheek?

-while using it within the first week, is it safe for a male to ejaculate in you?

Also anyone who uses the patch could you let me know your personal experiences / if it’s reliable and has worked or have issues with it