H pylori 7 day treatment

[trixsta1847]

I have recently found out that i have h pylori and have been prescribed
that following medication for 7 days.

Acid suppressant
omeprazole 20 mg twice daily

Antibacterials
amoxicillin 500 mg 3 times a day
metronidazole 400 mg 3 times a day

Is it okay to start this treatment a day after taking mebendazole.

I need some advice on how to make the treatment more effective, what diet
to follow and possible side effects. I understand that everyone responds
completely different to treatment but this is the first being on
antibiotics so any feedback and advice would very much appreciated.

Thank you