Suggest Remedy For Recurring Cold Sores

cold Sores: I have this cold sores which is continously recurring from the past 6 months, though it wont last for more than a week but it leaves white patches that takes at least 3-4 months to become normal . Can you please suggest me the way to get rid off these patches along with measures to keep cold sores away. This is really causing so much problem personally and professionally sometimes i have to skip work to hide my face from others.