||There is really no need to swab your skin with an alcohol swab before you give yourself an injection. The alcohol is going to dry your skin out and that could cause the injections to be more painful. If you are prone to infections, you may want to continue to swab before the injection to prevent infection.
A few types of diabetes have a cure. When it is time to make some lifestyle changes to deal with your diabetes, understand that "life" means for the rest of it. While there is wonderful advice contained in this article, it can only help out so far. Your health is your own responsibility.