This appeared somewhere around Masjid India. I have also seen such explict advertisements in Kuala Lumpur’s old communities like Kampung Baharu and Chow kit… where traditional approaches to all kinds of ailments have a market to exist in.
But when a community ‘develops’, its cultural practices also evolve. As such, traditional knowledge (productive or otherwise) will probably find it more difficult to exist. That is a loss to our cultural diversity. But for those who view this as a social ill, the thinking will be different right?