Can I still have a tummy tuck while on h pylori treatment?

I would suggest asking your medical doctor first, and then if approved, your surgeon. If you are taking this for ulcers, it would be best that your ulcers have healed before having the additional stress of surgery.

While your gastrointestinal physiology is being addressed with medication I would advise against an abdominoplasty. The increased intra-abdominal pressure generated by this operation, although temporary, can increase problems reflux. Even if this is not a problem for you I would wait until your other gastric intestinal issues are behind you before proceeding with an operation that will temporarily of fact gastrointestinal physiology.

The answer to your question must come from a discussion with your treating physician and your plastic surgeon.  It is important for your safety that both physicians are aware of your h pylori treatment as well as your surgical plans.