Possibly a dermatologist if it is a skin condition affecting the lips. If it is an infectious disease you are concerned about, then a doctor in the infectious diseases and tropical medicine...
Fruit juice<><><>That's right. Scurvy is caused by a shortage of Vitamin C in the diet. Fruit juice (lime, lemon, orange, apple, etc) is very high in Vitamin C.
A most effective method is using podophyllum available as podophyllum paint in brand name like Podowart. Use it daily twice or in moderation iff you feel pain on using it excessively. scrub away the...