Need Advice on cat with tumor

Hi,

This site was recommended to me by my long time friend "matchmaker". My cat is nine years old and has a tumor that is growing in her sinus cavity. The vet gave her three to six months to live. She is in her fourth month. I did some research and have put her on Reishi Mushroom and Astragalus. She also takes pain medication every day. This type of tumor is aggressive. It has pushed out her face near the nose and one eye. My question is, can you recommend something different to help her? I love her dearly and want to help in any way.

Thank you,
SapphireBlue