Travel to Kenya with expired stamping and valid I-797.

[prabhus]

Hi, Myself and my wife are planning to travel to Kenya this May. We both are from India. Currently, I'm on H1b and my wife on H4. We have a valid I 797 but the stamping on my passport has expired.

Should I be making an appointment at the US embassy in Kenya to get our visa stamped before we could come back?

Are there any other solutions to it?

Thanks