Aggressive Female Bengal

I am new to this forum but I am in a bit of a desperate situation and I'm down to trying just about anything so I'm hoping there is someone here with suggestions :)
I have 2 domestic cats now (I've been told they are Bengals, but probably really removed as their markings and features are not very distinct. Behavior wise though they are a bit Bengal-esque). They are mother and son, but they were separated for over a year so they probably don't realize that connection. However, they are inseparable. I also have a dog, and all 3 get along just fine, absolutely no problems. We had a 3rd domestic cat die at 20 years old about 2 months ago.

We recently took in a 2 year old female Bengal who, due to a very complicated delivery and a prolapsed uterus, was taken out of a breeding program and sold as a pet. Prior to the litter being born she was very sweet to all the other house cats in the breeders home. After the litter and subsequent spay - she became very VERY aggressive towards other cats. I was hoping that might have been hormonal, and after taking her away from the litter she would revert back to being non-aggressive.

After getting her home, I noticed a large ball on her stomach. Long story short - she had a massive hernia from spay complications that the breeder apparently 'overlooked'. So, she had yet another major surgery to repair that. Right now she is still separated and in a kennel to try and give her time to heal without any more issues.

After 1.5 weeks of being in my home (prior to fixing the hernia), secluded in her own room - there was still no sign of calming down when the other cats would come to sniff under the door. She would get very aggressive, puffing and grunting, screaming, etc. I realize this could not only be hormonal but due to injury, so my fingers are crossed that after she has healed maybe she'll get better all on her own.

But I'm worried it wont, and would like to stack the deck in my favor. I would really feel it a tragedy to have to return her to the breeder after what is such an apparent lack of care for her animals.

I've been trying to find some herbal remedy that might be a good thing to put in her food during her recovery time that will also ease the aggression - maybe kill 2 birds with one stone. She'll be more hormonally balanced after the time away from her litter, feeling better after the surgery - and perhaps more calm and less aggressive. The best possible situation to try again to introduce her to my house cats...

Any suggestions??!? Please!