One treatment might not be enough and dermabrasion is considered the better treatment of both generally. Laser treatments are very successful in removing scarring, are more precise and usually require only 1 treatment. There might be some redness for a while or even almost a year following the procedure but the success rate is usually impressive. Surgery on your scars and epidermis grafting are drastic steps but sometimes the attacks of pimples have damaged your skin and underlying cells so much that medical intervention is needed.The analysis was authorized by each center’s institutional review board and conducted beneath the observation of an unbiased data and security monitoring board. An independent clinical events committee adjudicated and reviewed all adverse events. All associates of the writing committee take responsibility for the completeness and accuracy of most data presented. A safety-related stopping rule that was established by the data and safety monitoring table was a rate of death in the EBV group at 30 or 3 months after endobronchial-valve therapy that exceeded the price in the surgical group of the National Emphysema Treatment Trial .2 Statistical Analysis We prespecified all data analyses in a formal statistical analysis plan, which is obtainable in the Supplementary Appendix.