Why doesnt my grandma listen to me when it come to my baby?

Every since i have had my daughter my grandma has got where i cant stand to be around her i feel bad about it to. I think its because of the things she says and does to my daughter. Like one day she told me to put her pacifier in hot sauce and then told me that it would be good for her. She doesn't listen to me when it come to walking with her. The reason i don't want her to walk around with her is because about 4 months ago she fell and broke her arm and then about 2 months after that she fell again and busted her lip, and is scares me that shes going to fall with her and hurt both of them really bad. Is there anything i can do so that i don't make me mad at my grandma. I don't want to feel this way about her because if it was not for her then me and my daughter wouldn't have nothing. One of there things that makes me mad is when she tells me to leave the baby in the car when we go to the store that she will be fine and that all she will do is sleep and it makes me really really mad when i want to yell at her.