Witch hazel, which is widely available in drug stores, can be used as an astringent and toner to clean skin and prevent acne, and it might soothe itchy bug bites. Tea tree oil may help prevent acne, too, and take the edge off of bee stings. Sometimes witch hazel is used for more serious skin problems like eczema and psoriasis, and tea tree oil is sometimes recommended as an antifungal. As long as you’re cautious (do not, for instance, take tea tree oil internally!) and willing to opt for a different remedy if things get worse, they might help and pose very little chance of harm.

