Aiyooo I totally get the worry, bisul at that area during pregnancy is really uncomfortable and stressful, especially when it's painful like that! A few of my mum friends had similar issues during their second and third trimester, and yes, sometimes they do flare up again if the area gets irritated or moist, so your concern is valid. Since you're at 34 weeks now and it's hurting again, I'd suggest checking with your doc sooner rather than later, better to confirm it's just inflammation or the same spot healing rather than guessing, especially this close to delivery time. In the meantime, keep the area dry, stick with the salt soaks your doctor recommended if they helped before, and avoid tight underwear or anything that rubs there. You're almost at the finish line, hopefully it settles down soon!