If warts affect a spot that’s not suitable for medicated ointment, or if the area is too widespread for ointments or gels, your doctor will recommend chemical or surgical removal. Options include cryotherapy, — when the warts are removed by freezing — laser removal, and surgical removal by incision.  Your doctor will most likely administer a local anesthetic, so you probably won't feel anything at all during the procedure. You might experience some minor pain and swelling after, but it will go away in a few days. You may feel discomfort with laser removal, but not pain. If you saw a specialist, such as a dermatologist, urologist, or gynecologist, they'll likely remove the warts during your initial visit. If you saw your primary doctor, they might not have experience performing a procedure or the right equipment. If necessary, they'll refer you to a specialist.  You can also visit a local STD clinic to have your genital warts removed. After having your procedure, follow your doctor’s care instructions. They’ll likely advise you to wash the area with soap and warm water 2 times per day. After washing the area, dress it with a clean, dry bandage. Remember to wash your hands before and after caring for and dressing the affected area. After cryotherapy, it’s common for blisters to form over the treated site. It’s important to leave them alone, so don’t scratch or try to pop them. They’ll go away on their own after several days. In rare cases, blisters or the incision site can become infected. Call your doctor if redness or swelling worsen after 24 to 48 hours, or if you notice pus or discharge. If all other methods are unsuccessful, some doctors recommend injecting interferon, or an antiviral medication, into the affected area. Side effects include flu-like symptoms, such as fever, muscle aches, chills, and pain at the injection site. Depending on the type of injection, you’ll have to see your doctor for treatments 2 to 3 times a week for 3 to 8 weeks.

===
Write a summary of the previous text in Vietnamese:
Phẫu thuật loại bỏ mụn cóc ở niệu đạo hoặc cổ tử cung tại phòng khám của bác sĩ. Rửa vết thương mỗi ngày 2 lần và băng lại bằng băng gạc. Tránh gãi hoặc chà xát các nốt phồng rộp tại vết thương. Hỏi về liệu pháp interferon nếu các phương pháp khác không thành công.