I'm on the down slope of a long viral cold (3.5 weeks). Started with a sore throat, lots of sinus stuff. Right now, still a lot of sinus drainage. Some blood in it. The worrisome part for me is the very tip of my nose is very painful to the touch. Not on the inside of the nostril like it's a topical open sore but touching it from the outside. It's not a boil or pimple either. Never had this happen before. Any ideas?