I gave vaginal birth last month 27 and they did episiotomy. still now stitches get hurt not healed. near the first knot of Stitch, pus were formed and the first knot were not closed.why this happened and what do to for healing? should I restitch or medicine ointment can heal ? doctor gave betadine solution, betadine ointment, sodium fusidate ointment (fucidin) and gave pain killer medicine. how should apply all these ointment. During night time should I apply ointment or leave it normal?