should i stay in US during extension process

hi

my h1b is expiring on dec 27th. i have applied for extension in premium. in uscis its in accepted state. due to some medical reason, i want to travel to india and come back to US before dec 27th. can i do it? or should i wait for my extension process to coplete?

thanks

rajesh

you can go but your COS will be abandoned and you will need to get visa stamped with approval before coming to US