Hi monalisa. Although you may have read about ppi being contraindicated in the treatment of h.pylori it is part of the standard triple treatment needed to eradicate it. The two antibiotics work together with the ppi. Have you been given Omeprazole as this is the one that has had the best results in this situation.
I haven't had h.pylori but do have a sliding hiatus hernia which I have a ppi for. Without it I suffer from GERD/GORD and developed quite severe oesophagitis which is ulceration of the oesophagus.
The treatment of h.pylori together with hiatus hernia is finely balanced and not clear cut. Have you been given a follow up appointment yet? I think it's important to explain that you've only taken two of the three parts of treatment to give a clearer picture. From how I understand it the ppi is given to reduce the stomach acid which allows the h.pylori to grow sufficiently to enable the antibiotics to get a 'good hold' and then eliminate it. I'm not an expert though
The pain in your back could be to do with the hernia or the ulceration in your stomach. I haven't read that hrt patches lead to h.pylori but all HRT carries a risk of gallbladder problems which can cause pain as you describe. Keep a note of which foods cause the pain in your back to see what's affecting you the most. Fingers crossed the h.pylori has gone.
Taz x