Mexican tourist VISA

[Visa2468]

I got my h1 approved from Nov 5th 2018 till Dec 31st 2018 and most of them suggested to go for stamping since I travelled to indian when the h1 is in process and an attorney from Murthy law firm suggested to go to Mexico for a day or two using AVR which should be helpful to re-enter to USA. 

But my question is do we need to get a Mexican tourist Visa to travel to mexico since my f1 Visa which is there until 2020 is invalid after my h1 got approved. I read that if we have a valid f1 stamping we can get it at the arrival but for invalid visas and travelling with and approved i797a we need to get stamping before hand. Just wanted to know if that is what needed to be done or on arrival would be given for persons with i797a too.

Any help would be greatly appreciated.

[02112018]

If you have a valid F-1 you can travel and attend a visa stamping and come back without mexico visa.

[Tjgarla]

If you travel to mexico on F1 and come back on F1 , your H1B approval will be invalid since you have an i94 on the approval and you will receive a new i94 for your F1 status. You can;t get the H1B stamping in Mexico since you are on F1 and they don't stamping COS cases.