My mother wants me to apply a mixture for protection, but I'm concerned it may be shirk
Assalamualaikum. My mother is really worried that some envious people might have cast the evil eye or done sihr on our family. Lately, we've faced some serious trials, including the loss of one of my siblings, and other hardships I'd rather not mention. She's become very anxious and is mixing coconut water with salt and garlic for me to use as a kind of protection. This doesn't sit right with me-it feels like it could be shirk. Can someone with more Islamic knowledge please help me explain to her why this might be problematic?