Question - how do i renew my H1B visa stamp on my passport ?

[mjj440234]

I have my passport stamped with a h1B visa stamp which is about to expire in a weeks time. I want to get this visa stamp renewed or get a new stamp on my passport. How do i go about getting this done ? Where do i apply ? Can I send my passport my mail to get it stamped ?

thanks !

 

[mjj440234]

thanks.