Do you have a boyfriend? Sometimes yeast infections can be passed back and forth between partners. Since the guys don't usually get checked, they keep re-infecting the woman. It's relitively rare, but it does happen. Have him go to the doctor for treatment, as well.

Also, are you following the normal advice: only cotton underwear, or even skip the underwear to let things breathe (at night is good)? Not wearing tight clothes down there? You aren't douching or using any feminine hygiene products, right? That can alter the natural pH of the vagina and make it easier for infections. Just mild soap and water is all you need. Wiping front to back when using the bathroom is important. Also, no scented tampons or pads.

You said "antibiotic," but "antifungal" is more of the correct term. Yeast infections are caused by fungus, not bacteria. Just so you know, for future reference.

Yeast infections often begin once you start taking contraceptives. Also, I found that bathing in a cup of vinigar was very effective for instant relief. Yoghurt also helps calm the irritation. A homeopath explained to me that it was often the antiobiotic assisting the growth of the fungas and perhaps you require a probiotic to counteract the "good" fungas..

What MyrahU said about getting you boyfriend checked if you have one is really important. You could be passing it back and forth between each other.

You could have an infection that isn't completely going away, and is becoming resistant to the drugs. I just read a bunch of info on the Department of Health and Human Services website:

"What should I do if I get repeat yeast infections?
Call your doctor. About 5 percent of women get four or more vaginal yeast infections in 1 year. This is called recurrent vulvovaginal candidiasis (RVVC). RVVC is more common in women with diabetes or weak immune systems. Doctors most often treat this problem with antifungal medicine for up to 6 months."

http://womenshealth.gov/faq/vaginal-yeast- infections.cfm#k

Also more info here:
http://www3.niaid.nih.gov/topics/vaginalYe ast/treatment.htm

Be really careful what kind of information you are getting.. there are a lot of "miracle" cures advertised on the internet that are not worth it. Believe me. I learned the hard way.

I have the same problem so I am going to my doctor tomorrow and ask him for an anti fungal until the symptoms are gone and then a maintenance dose for 6 months after. Hope he will! Cause I am losing my mind!

There could be several reasons why you are still experiencing recurring yeast infections but they can all be summed up with one simple explanation. You are just treating the infection, not the cause of it. A yeast infection is always a sign that something is not quite right internally. Often it is an immune system deficiency or a problem within the digestive system. Western medicine goes about treating yeast infections all wrong. Current medications, both over the counter and prescription do little more than mask the problem and provide temporary solutions. To really adress the problem, you need to make a few small lifestyle changes. I had the same problem as you four years ago. I learned how to deal with it and have not had a yeast infection for almost four years now.