Ask HN: What home or herbal remedies have worked for you?

> has not been scientifically validated, but this does not mean they do not work.

I’m wondering the same, but for the opposite : What things did you notice badly affect your health, but has not necessarily been scientifically validated ?

My mother (Indian) gave me tips for my extremely dry skin/psoriasis. Mix Coconut Oil and Camphor (kapur in Hindi) and apply it on the skin. It has done wonders and cured of all my dryness/psoriasis patch including scalp. Apply twice a day for best results.

Peppermint oil for cough.

I skeptical of essential oils in general, but my wife is not.

Daughter(16) up half the night with a bad cough, wife put a little oil on upper lip. She immediately stopped coughing and went to sleep.