Mil washed my 3 months old clothes with my baby's utensils cleanser

Hi My monster in law who thinks she is a wonder woman washed my 3 months old clothes with my baby's utensils cleanser and when I asked did u wash my kid's clothes from this she started laughing which made me more irritated. Then she said its okay , just wash once from.plain water , everything will be okay. I felt like punching her hard and break all her teeth. Oh God, I hate that crazy piece of shit. And when I asked my husband why dint you say anything, his reply was that my mother doesnt know how to read. I was already pissed off from the fact that she makes my LO pee anywhere and then wipe it off. Even telling her on daily basis she does not stop and the worst part when she was doing it yesterday my FIL, SIL and my husband all of them were present but no one stopped her. I make sure that my kid is with me most of the time but sometimes I have to leave her for few minutes for eg when i am bathing or cooking. I have already made her clear that dont do any chore of my child , I will look after everythinga but she just dont listen. She takes my kid's clothes and wash from normal detergent to which I have said that please use baby's detergent to which I get a reply that humne toh normal se hi wash kiye hai, babyhug wale me toh fragrance b nahi aati. At that moment I felt if I could kill her. I hope the clothes she washed from cleanser will not harm my baby's delicate skin.