i have some black spots inside my lips

Treatment of dry and black lips:
First of all, it's recommended to visit your family doctor to assess your condition. Usually, the dry lips will be healed on their own and you can use a lip balm to reduce the dryness and improve the colour of it. Vaseline is also another treatment. If no improvement after a few days, you can try 1% hydrocotisone for one week after visiting your doctor. Furthermore, it's recommended to dink a plenty of water per day in an average of 2-3 liters and to have a healthy diet regimen rich in minerals and vitamins as well as to take vitamin C, zinc tablets and vitamin B-complex .

Diagnosis:
Visiting your family doctor for assessment of your condition as usually no investigations are needed. In some cases complete blood count can be done to rule out infection or anemia.

What are the the possible causes ?

• Bad hygeine
• Malnutrition
• lack of fluid intake
• Smoking
• Infection
• Vitamin deficiency such as vitamin B complex
• Dry weather
• Common cold
• Over-exposure to sun
• Vitamin deficiency such as vitamin B comple
• Low zink
• Yeast overgrowth
• others

Recommendation:
It's recommended to visit your family doctor for further assessment and management.

Well, your condition needs further assessment, so it's highly recommended to visit your family doctor for further evaluation.