Dry and cracked lips of 6-month-old babies are most often caused by hot weather, drier air, children drinking less water, lack of vitamin B2, and dehydration of the child during high fever. In this case, the main cause of the treatment is the main. You can give your child more water as appropriate, and be sure to increase the amount of water when the weather is hot, as well as eat more fresh vegetables and fruits, especially those rich in B vitamins. If there is a high fever, it is even more necessary to give the child enough water, local dry cracks, you can apply the rehabilitation of new liquid, to promote the regeneration of the mucous membrane, you can also wipe the oil antibiotic ointment, to prevent secondary infections, commonly used erythromycin ointment, every time you eat the milk, before eating to wash clean.