Hi,
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The pain could signify persistence of infection, re-infection, presence of pelvic adhesions (damages done due to infection), other structural problems, endometriosis, ovarian cysts, etc. It is difficult to comment on the exact cause without examining you. Consider visiting your gynecologist at the earliest for further evaluation and assistance. Treatment as appropriate (based on examination findings and investigation results) would be started to help you. Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any unusual/abnormal/new symptoms immediately.
Take care.