Hello, Repeated boils can be relate to diabetes. Please get his sugar fasting and PP levels and see if there is a need to treat them. He should avoid eating mangoes or other items which are known to give him more boils, he might be sensitive to them. It is common for people who get boils to have more when they eat semi ripe or artificially ripe or just any mangoes. Also, he should take bath with a proper medicated soap or atleast neem soap with antibacterial properties. Eat more veggies and avoid non veg food , oily and spicy food for sometime as it increases sebum production. You may put boiled neem water (after it cools down) to his bathing water. This would also serve as an antiseptic and reduce boils. Encourage him to take more water and salad, this will help a lot. Dont worry, he will be fine and with time sacr marks will also go away. Make it a habbit to use antibacterial or medicinal soap for his bath. Wish you luck. Dr. M. Gopal