I would try again to see if a surgeon will at least staple it closed because you're possibly going to have a wider scar in that area. The internal stitches you see will dissolve, but the external area needs to be kept clean and dry. You might want to use a very thin amount of antibiotic ointment, and if you notice any redness or heat, get to the doctor right away as it would be a sign of infection. It's going to itch more because of the width--the more it takes for a scar to heal, the more it itches in general. But this is a good sign of healing. Keep the area around it moisturized with a sensitive skin, fragrance free lotion. Try to find a doctor here that will treat you. That may be hard due to the fact that another doctor performed the procedure and is out of the country. There are other wound closing options they can use such as a super glue type substance. But in the meantime, just keep it clean and dry and even cover it with sterile dressing. To change the dressing, soak it first to avoid pulling off the scab and reopening the wound. Watch for signs of infection--redness, heat, fever, body aches, chills, nausea, vomiting, etc.
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Lori