If the apparent visual magnitude of the Sun is -26.5 and that of the full moon is -12.5, what is the light intensity ratio of sunlight to moonlight received at Earth on the day of the full moon?
Symptoms of a cold sore can include: 1  a tingling sensation, redness and swelling around the lip before the cold sore develops. 2  small, fluid-filled blisters which break open and develop a yellow crust (scab). The scab usually falls off around seven days later.
1 Protect your lips â Make sure you wear a good sun-screen lip balm in direct sunlight as this can trigger cold sores. 2  In winter make sure you keep lips moist, use a lip balm. 3  If lips do become chapped or sore it can be easier for the virus to take hold.y problem is I have 2 in the corner of my mouth on the letter side so when they scab over when my mouth is closed when I open my mouth all the way it rips off the scab bad streachs out the wound. Also when you have a cold sore dont drink citrus drinks. The burn your mouth.