I Have Dark Dry Patches On My Right Index Fingertip,
Thanks for your query posted .
Your condition can be seen very clearly on the photo images. You have Palm Keratoderma.
This condition can occur due to external causes like chemicals , physical exercise , detergents or due to XXXXXXX causes like genetic or hereditary reasons.
You will need to use a Urea 20 % cream daily on your palms and that will help in reducing the thickness and make the area softer.
You should avoid any external friction or pressure on the affected areas.
In case this does not improve in 1 month of Urea 20% application , you will need to take tablet called Acitretin 25 mg which is available as a prescription from your Dermatologist or Physician .
P.S The best method to apply Urea cream is first to soak the hands in XXXXXXX warm water for 10 minutes , then scraping the skin with the filer and then applying it as this will help in better absorption of the cream and will be more effective .
Thanks and take care