Is it safe to treat my 16 year old cat's cyst on his paw with Turmeric?

I’ve read about Turmeric & its use for pet cysts. Is this safe? Should I make a paste & apply it to the cyst, or sprinkle powder on his food? If so, how much? Are there side effects? Is there a possibility of infection? Thanks! I am unable to take him in to be seen by a vet, because of his age/weight. He also gets extremely stressed out, has panic attacks, and needs to be sedated. He hasn%u2019t been seen in years for this very reason, and I fear at this point in his life a potential heart attack is not worth risking. I have shown a photo of the cyst to the vet, and he said as I expected

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