She gave birth a month ago. She saw a doctor recently, she has interna…

She gave birth a month ago. She saw a doctor recently, she has internal and external stitches, more than half of them have healed, some haven't. The doctor says to treat with betadin and put in tampons with levomeconazole. I do all that. Still, the wound on one spot hurts badly and doesn't heal. Who treated the stitches? I am so tired already, walking is painful.