Certain individuals are immune to the Infinite Tsukuyomi. The dead, such as those brought back with the Impure World Reincarnation , are impervious to the Infinite Tsukuyomi.  White Zetsu, Black Zetsu , and those whose body Black Zetsu coats are also unaffected.  A Rinnegan user can block the light of the Infinite Tsukuyomi, saving themselves and those within their range from its control.  In fact, Rinnegan users, through combination with the chakra of the nine tailed beasts , are the only ones capable of ending the Infinite Tsukuyomi and releasing those trapped within its dreams. Should these be possessed by two different people, they must form the rat hand seal together in order to release the technique. 
I was on 200 mg of Prednisone daily, and now I've been weened to 90 mg daily. I have the moon face, acne, and weight gain as well. Make sure to drink as much water as possible, eat low sodium foods, drink a lot of milk, and eat a lot of bananas. Another side effect of Prednisone is depression and mood swings, which I have as well. The depression and mood swings probably make you exaggerate how bad your weight gain, moon face, and acne actually are. I've been on Prednisone for the past about 2 - 3 months and I'll be on them for the next year or so. They are hard to deal with, and they have lots of mental and physical side effects, but if you're like me it was either dealing with the pills or not being here today, so good luck with everything and I hope you get off them soon.