Your antibiotic will not interfere with laser hair removal (LHR). Some antibiotics that cause photosensitivity should be discontinued for a few days before LHR, although this concern remains theoretical. Laser hair removal accounts for the majority of laser related malpractice cases with thermal burns and scars being the most common complication. Whenever possible, seek out an office with a board certified dermatologist who personally examines you so that the laser choice, and settings are determined by the physician, not a non physician. Multiple treatments are necessary but if there is no underlying hormonal problem such as polycystic ovarian disease, you should have permanent hair reduction. When treating chest, back, legs and arms roughly twice the number of treatments (10 or so) will be necessary to reach 90%+ permanent hair reduction, when compared to face/under arms, groin (5 treatments average) for 90%+. Laser hair removal usually has very high patient satisfaction. Best Regards