The interviewer was curious about Eastern Medicine based remedies because of their supposed homeopathic properties. Luckily for him, his grandma, G, knew a few tried-and-true methods to relieve everyday aches and pains. Over the years of seeing success in their implementation, Indian elders would much rather administer these folk remedies than to give out medication like Advil or Tylenol which they see as unnatural.
This particular remedy is for oily scalp:
“Massage a mixture of lemon juice and honey into your hair. Rinse it off after five minutes. Repeat daily until your hair is no longer oily”
The interviewer understands the need for folk remedies. From the point of view of his grandma, these folk remedies provide effects that are similar to pharmaceutical medicine but at a fraction of the cost and are immediately available. Furthermore, they wouldn’t be so prevalent as they are in Indian societies if they were not at some level able to treat the malady.