My lips are cracked from corner side and are not healing from last 6 months I have applied each and every cream, oils, lipbalms and have taken vitamin b12 and vitamin c for 15 days and then again for 10 days but they have not healed. They are cracked non bleeding but yes dry skin is always present which looks very shabby and they sometimes get dry and stretchy although I am having plenty of water in whole day. Kindly solve this.