They have a long history with oral hygiene; they inhibit the growth of oral pathogens and are especially useful for treating gum diseases. Their pain-killing properties were used for toothaches. Extracts from cloves behave similarly to insulin and help control blood sugar, and are recommended for people with diabetes. They also aid digestion and are used to treat indigestion, flatulence, gastric irritability, and other digestive complications. Its anti-inflammatory properties were used for acne, skin burns, and irritations.