“How to treat this issue?”

I went to the doctor with a mark on my nose, she told me that it was caused by the sun. She gave some efudix to apply. She explained that it would take weeks to go and that it would get worse before it got better. the problem is that it is getting into a bit of a mess. I am getting self-conscious about it. When I go to bed at night I wake up and my nose is all crusted up and has been weeping with blood. Is there any way that I can apply a dressing or covering?