Hello dear @ewela ,hope your day is going well.Your grandma knew a lot about natural remedies.I never knew about using ash for fevers. Onion juice for reducing fever sounds interesting, though it must taste bad. Potatoes on the forehead for illness? That's new to me.Natural medicine seems really powerful. Thanks for sharing these tips, really enjoyed reading your blog wish you success 💖🤗🌸💐🌺.