What is the ruling on injecting Botox into the hair and armpits to stop or reduce sweating for only a few months?

The ruling on using Botox injections to prevent sweating depends on two matters: First, Botox is a toxic substance given in safe proportions. The permissibility of treating with small amounts of toxins, especially if they are not of animal origin, is considered. Second, sweat is a waste product excreted by the body, and any change in its function may expose a person to harm. Therefore, it is necessary to consult trustworthy doctors to determine the extent of potential harm. If the harm outweighs or is equal to the benefit, then the ruling is prohibition.