It's great that you are doing all you can to help your sister through this difficult time. Make sure that you are using EFT to tap on your own emotions and concerns to do with this too - the clearer we can be ourselves the more we can be there for the ones we love.
Yes EFT could help with acceptance of how she looks at the moment. While it would be optimal if you could work with your sister on it, many people have seen amazing results from tapping for others surrogately. Rather than looking to others to find phrases, the best thing would be to listen to your sister's language and how she feels and customise the phrases based on her language. That is the most effective way of getting things to clear.
Tapping for any side effects that your sister is experiencing from the drugs could help to clear her body of them, you really just have to try it on everything and see how things go. There is no way to say how long something will take, healing is a very individual thing and it is the person who you are tapping for who does the healing - when we tap for someone we simply facilitate their healing. We can't force someone to heal faster or in a different direction, and as much as we love someone, we don't know what healing is for them.
I've personally found that the less attached I am to the outcome, the more effective any surrogate work I've done is. The more I can stay clear and honour that the person is on their own healing path and accept that and simply tap to support rather than try to fix, the more effective it seems to be. I know that might be really difficult given the circumstances, but just thought it important to include.
I'm sure that anything that makes her feel better will contribute to your sister's healing, and if her appearance is what is troubling her the most right now, then it's a good thing to work on. Also listen to any fears or concerns she is expressing, or any emotions that you sense are trying to surface but she is having difficulty letting them up. Any tapping in these areas could potentially help her.
Very best wishes,
Jo
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