Urgent Help – Very Poorly Girl following tumour removal

Hi to all you boxer lovers. I have a very poorly girl. Lottie is a wondeful 11 1/2 year old boxer. She has always been really fit and healthy and is so good for her age. She is our 4th boxer and we also have a resuced sister for her called Belle who’s 8. They are inseparable.
She went in for surgery 10 days ago to have a tumour removed from her neck. She is now suffering with extreme fluid retention and is very unwell. After a visit to an emergency vet last night, she was given pain meds and a diuretic. We have been told that she needs steroids, more diuretics, and ultrasound. Our insurance has topped out and I am desperately trying to find funds to help her. I have set up a crowd funding page at justgiving.com/crowdfunding/tracy-newell
If anyone feels they could help us fund her treatment, we would be so grateful. She is a wonderful dog and despite her age, derserves a chance to get better.
Thank you for reading