Hi :wave:
I'm so sorry to hear about your rabbit
I don't have any personal experience of this but it seems that the outlook can be better if your bunny is vaccinated than if she isn't.
http://www.rabbitwelfare.co.uk/rwf/articles/understanding_myxo.htm
Extracts from the article -
If a vaccinated rabbit develops myxomatosis, the disease is usually much less severe. The exact pattern of disease seen in vaccinated animals is very variable, and impossible to predict: it depends upon how much immunity the rabbit has. Some rabbits develop just a few odd skin lesions and remain otherwise well; others become quite poorly and suffer from swellings and conjunctivitis more like classical myxomatosis. The difference is that vaccination turns a fatal illness into one that is treatable.
Can rabbits with myxomatosis be treated?
If an unvaccinated rabbit catches myxomatosis and develops the full-blown classic form of the disease, survival is very unusual, even with intensive nursing and treatment with antibiotics to prevent secondary bacterial infection. Most affected pets in this situation are put to sleep as soon as the diagnosis is made, to prevent futile suffering.
If a vaccinated rabbit is unlucky enough to catch myxomatosis, the situation is much less gloomy. How severely any one vaccinated rabbit will be affected is impossible to predict. It depends on how much immunity they developed after their vaccination. Some rabbits simply develop a single skin lump and remain perfectly well. A few become really poorly. Others fall somewhere in between, such as being a bit "off colour" with a few skin lesions.
Treatment is usually successful in the vaccinated rabbit with a good vet, nursing care and a bit of luck. But it if the rabbit is unlucky enough to be badly affected, intensive and prolonged veterinary and nursing care (weeks rather than days) is occasionally required.
Rabbits being treated for myxomatosis need:
• Careful nursing care in a warm environment (21-22 degrees centigrade)
• Regular bathing of sticky eyes and genitalia
• Fluid therapy - subcutaneous, intra-peritoneal or intravenous fluids may be used
• Tempting food and syringe or tube feeding if necessary
• Antibiotics to prevent secondary bacterial infection
I hope this helps a little. Hopefully someone with more direct experience will be able to give more advice. Good luck x