鍾嘉欣, this formula is from my daughter, Kelly, she googled and found this formula and many people tried, young and old. After applied it and their Fever stopped. This is very good especially you have kid. 1 Onion cut into ring 2 cups apple cider vinegar 1 egg white 1. Mixed well 2. Use hanky or little towel to dip balance mixture n wipe her down on her face, neck, her chest, armpit n back...keep repeating to absorb the heat into the hanky n socks.