Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Scars are fibrous tissues that replace skin after injury. It is difficult to diagnose the reason and type of scars without actual clinical examination or photographs. Scars are pretty difficult to treat without procedures. No cream/ointment would help in getting rid of scars. Tretinoin molecule based cream/gel can help in reducing scars to a certain extent. I would advise you to thorough consult with a dermatologist. Usually for mild scarring chemical peeling and microdermabrasion will be a good choice. For moderate to severe scars, microneedling (dermaroller) with or without subcision is a good option. For severe deep scars, laser resurfacing would be the best option. Yes you can use kojivit gel twice a day over dark spots for at least 2 months. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Hardik Pitroda