Jane, You look to have a secondary infection on your lip! And you look flushed. You may have gotten pneumonia as well in the hospital. PLEASE, you need to be back in there. Do they still have you on an antibiotic? If so, which one? Do you take acidophilus? If not, you need to. You don't want to have C. diff (a bacterium that causes gastroenteritis, diarrhea, etc.) as well!!!
Lung infections, especially when you can't cough due to weak chest wall muscles, are life-threatening. Please, go back in. They also need to check your O2 and arterial blood gas. You may need a BiPap at home.
Take this seriously. And have someone look in/at your mouth. I hope you'll be okay!!!
Annie