I am not a physician and healing differs from person to person. Checking with her primary care provider, who knows her and all her medical history, may be the best way to get an answer specific for her.
thanks Helpful BUckeye, we were able to take her to her Vet today.
We 1st noticed is when she woke up in the morning and there is a stain on the sheets, then a bloody stain a few days later. We use alcohol wipes to wipe
location of the lesion in question, there is a possibility that it arose from an injection site... about some other cause for this spot.
From your description of the lesion and your veterinarian's response...