Thank you for the query.
Current guidelines say that uncomplicated diverticulitis
should be treated with trimethoprim/sulfamethoxazole
. Rifaximine treatment is also acceptable and gives less frequent recurrences. Regular course of mentioned above is 7-10 days.
Augmentin is not a good choice and you may find it ineffective. Please note that some cases of diverticulitis can lead to intestine perforation. That is why it is extremely important to have it treated correctly.
Symptoms usually go away after 2-3 days of proper antibiotics treatment. After full course of antibiotics inflammation should be healed. Please remember to have colonoscopy
done (not earlier than 3 weeks after the treatment)
But once again, Augmentin can be ineffective. I suggest you to consult other doctor (gastrologist for example) and consider different antibiotic treatment
Hope this will help. Feel free to ask further questions.