Barton went to the druggist shop to get medicines for the sick person so that he could be treated.
Explanation:
Barton is a worker of Carson but in unemployed at that particular time and was going through poor conditions. But when one Wilson goes to visit Barton and tells him about his sick friend and asks for help, Barton takes whatever he had for dinner to Carson and his sick friend and then later visits a druggist store to buy medicines for the guy who is Wilson's friend and is sick so that he could be treated.
