https://www.sistani.org/english/book/46/2029/
All kinds of alcohol (whether extracted from wood or other sources) is pure, not najis. So, the medicines, the perfumes, and the food containing alcohol are pure and can be used. It is also permissible to eat such food if the amount of alcohol is very minute.
Then it also says:
If the hand and the clothes become impure because of an intoxicating drink, a single wash can purify them. However, in case of purifying the same with little water, it is necessary to rinse the cloth after washing.
I can eat food containing alcohol, such as red wine sauce?
Does my clothes become najis by having alcohol (intoxicating drink) touch them? Am I misunderstanding something here?