I'm sorry you have this sexually transmitted disease.
Here is a link with more information:
http://familydoctor.org/213.xml
Here's the general regimen:
Ceftriaxone (Rocephin) is given one time as an injection in a muscle. Doxycycline is taken as pills twice a day for 14 days. Doxycycline is not used if you are pregnant. Avoid prolonged sun exposure while taking doxycycline.
Side Effects
The common side effects of the antibiotics recommended for PID include:
Nausea or vomiting.
Diarrhea.
Rash.
Headache.
Fatigue.
Dizziness.
Yeast infection.
Each antibiotic medication for PID may have specific side effects or interactions with other medications.
See Drug Reference for a full list of side effects. (Drug Reference is not available in all systems.)
If side effects from the medication treatment occur, report them to your health professional. Other antibiotics may be prescribed that cause fewer side effects.
A follow-up examination should be performed 2 to 3 days after you start treatment. You should have less pain and tenderness during an abdominal and pelvic exam. Follow-up exams at 7 to 10 days and 4 to 6 weeks are usually recommended to make sure treatment is successful.
If your symptoms have not improved, your health professional may try another medication regimen
From EMedicine:
Unanticipated vaginal bleeding coexists in about 40% of cases.
Pain is present in more than 90% of documented cases and is by far the most common presenting symptom.
Usually, pain is described as dull, aching, and constant; it begins a few days after the onset of the last menstrual period and tends to be accentuated by motion, exercise, or coitus.
Pain from PID usually lasts less than 7 days; if pain lasts longer than 3 weeks, the likelihood that PID is the correct diagnosis declines substantially.
Abnormal vaginal discharge is present in approximately 75% of cases.
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It seems that what you're feeling now is part of the PID. The antibiotic regiment is abt 14 days - I would call your ObGyn in the morning and tell them what's going on. You may need to go in if your symptoms aren't improving. BTW, PID is generally a result of being exposed to clymidia and gonorrhea. Please do not have unprotected sex again.