Thanks for posting you query to health care magic.
some time some wound take longer time to heal and there are so many causes for that .if your culture is not showing infection than there might be some other causes .I would like to suggest you some measure which will help in rapid healing :
1.no need to clean it 4 times a day as frequent irritation interfere with healing .you need to give rest to your wound so that regeneration can be takes place .
So I advice you to do cleaning with normal saline and
hydrogen peroxide 3% and dressing with
povidone iodine with
metronidazole cream .every 24 hr if discharge is lalrge or every 48 hrs if discharge is small amount .
Take multivitamine tablet containing vitamin b complex ,
vitamin C and Zinc as it help in rapid healing .
give rest and restrict movement of wound part .
no need to wash with soap.
presently oral antibiotic is not needed as culture is negative but if pain develop at wound site and discharge increases oral medication with consult to
general surgeon will be required .
Hope you would be satisfied with my answer . Feel free to communicate if any query .
regards,
Dr.Manish Purohit
Infectious disease specialist