nursing home injustice? need advice!

I would like to thank each one of you for taking the time to read and reply to my post. It was just a way of venting out my disappointment. I do feel the sentence was harsh, if it was just a verbal then it wouldn't have been as bad. I would like to add in some details to my previous post. Don't get me wrong, I do check to see if the resident's mouth after meds administration when I am not familiar with the resident and believes the resident to be confused. However, in this case, she does not have trouble swallowing nor has given anyone (including me) any problems with pills in the past. It just happens that this was the case, just my luck. The letter made it seem like they did some investigation and found me to be guilty but I believe that is a lie because I have a witness who was present with me during meds administration. When the DON showed me the letter of what the adminstrator wrote to the family member, I told her straight up this is a lie. She didnt say anything. She told me that not to take it personal, she was just following the administrator's orders and that this will not go into my records or anything. She also advises me not to tell the administrator that I saw the letter as it was confidential materials. I mean, if there's nothing for them to hide, if they did not accuse me, why can't i mention the letter? You see what i am saying? Of course, at the end of all that drama, I realized it was no use to defend myself and talk to the administrator because he was the one who accused me in the first place. This is not the first time I have been in trouble at this facility. I feel that they will do anything to divert the fault on them (that is, systemic error) and to please the family members. I do feel I need to get out of this place because if they can not even support a nurse in something little, I can not imagine how they will stand behind a nurse when a big problem arises like a lawsuit.

oh forgot to add in, when there is a systemic error, the last nurse who committed the error takes all the blame.