When your airways are raw and irritated after a cold, it's easier for bacteria to invade. Bacteria can cause sinus infections, bronchitis, and pneumonia. If you have a fever or pain along with your lingering cough, a bacterial infection could be the reason. See your doctor, as you may need to take an antibiotic.
Any new legal document with the potential to have a substantial impact on your finances, time or responsibilities should be reviewed. Any time you make changes to a legal document or your situation changes, a legal document review is a good idea to ensure your interests are protected.
The most important thing to do to legally change your name is to start using your new name. Introduce yourself using your new name, fill out forms and applications under your new name, tell all of your family and friends to only refer to you using your new name, and tell your school and/or employer of your new name. As mentioned, some institutions may require legal documentation of your name change.