kissing other people babies & MIL rant.

i hate people kissing my baby only my husband and I can kiss her. my mother in law gets livid because she can't kiss her and says she's gonna do it behind my back. which annoys me & now I know I can't trust her with my child. I don't want anyone kissing her because of viruses and I don't want their germs. my parents respect that I don't like it. my husband's has to constantly remind his mother to not kiss her everytime we go over. she keeps asking when she can kiss my daughter & he says when she's 3 months. I don't agree with that. she had her kids and kissed them as much as she wanted. I don't like germs or other people's dirty bacteria mouths on my baby. it may sound mean but the mouth is dirty and baby's skin is very sensitive. his mother keeps saying she's waiting to kiss her & the baby isn't going to escape. its so annoying. I'm even more worried the fact that an apartment in the same apartment complex she lives in opened up & we are moving in , in about 2 months & to get to our apartment we have to cross by hers. now I'm afraid I have l deal with her wanting to be up on the baby 24 7 ... she has 2 other grandchildren the same age and always slobers them. please advice on what I can do. I know I may sound mean but she always does things the parents don't like. If they say no soda she gives the kids soda behind their back. No candy she gives them candy! what respect are the kids going to have for us as parents. they're going to think it's okay to do things behind our backs