I have a denim trouser. I am unable to remove blue pen ink on the pocket area of the trouser. What can I do?
Assuming the type of pen is ballpoint or similar. Most inks (not all) are soluble in alcohol. Isopropal Alcohol (Rubbing Alcohol) or Ethanol (Drinking type or Hand Sanitizer) will work. A good quantity rubbed into the stain followed by blotting with a paper towel then wash your trousers as you would normally.