I have cracked lips and they are not healing from last 6 months. They are cracked from right corner side non bleeding but yes always covered by dry skin. I have taken vitamin b12 for 15 days along with vitamin c and then again for 10 days after a 15 days gap. Lesion get dry and skin start to get peel off. They become very stretchy and dry. I have used lipbalms and creams and oils but they are not getting resolved. I am taking plenty amount of water but again nothing is happing. This condition is same for last 6 months kindly resolve this.