Efficacy in Preventing Hypertrophic Scars: A Randomised Controlled Trial Comparing Chitosan Cream, Silicone Gel & Olive Oil

The goal of this clinical trial is to compare the efficacy of three different topical applications in preventing hypertrophic scars in adults with scars healed after suturing. The main question it aims to answer is: Is Chitosan cream effective in preventing hypertrophic scars? Researchers will compare Chitosan cream with silicone gel and olive oil to see if there is any difference in their efficacies. Participants will be randomly assigned to three groups, with each group using a different topical application. They will be instructed to: * apply the topical application on their scar twice a day for 8 weeks * attend follow-up visits at 4, 12 and 24 weeks for a doctor to assess their scar and take clinical photographs * immediately inform the researcher if they experience any side effects