可以用香薰油處理灰甲(甲癬) 問題嗎? Can I use essential oils to treat Onychomycosis? 可以! 可以使用茶樹精華油和檸檬精油。茶樹有效殺死真菌,可直接塗在患處。或可與底油調和至5%。 Sure! Tea tree oil and Lemon oil are very effective oils to kill the fungi that cause Onychomycosis. Also can use them directly on the affected area or diluted with carrier oil with 5% essential oil.