Nak, this really needs another check-in with your OB, if the discharge hasn't improved after the antibiotics and the warts are multiplying, please don't wait, go back to her or get a second opinion before January, okay?
A few of us moms experienced similar concerns in third trimester, and honestly, peace of mind is so important this close to delivery, your comfort matters, and it's totally valid to ask your doctor more questions or even seek another opinion kung hindi ka satisfied sa explanation. Your OB will have the best plan based on what's safest for you and baby during delivery, whether that's the laser before CS or after, but make sure you feel confident about it. Kaya mo yan, mamsh!