40-year-old sunburn treatment goes viral: Menthol foam shaving cream method reduces sunburn pain.

40-year-old sunburn treatment goes viral: A mum's Facebook post shares a menthol foam shaving cream method taught by a doctor 40 years ago to reduce sunburn pain. The treatment, applied directly to sunburned skin, is said to make an instant difference in 30 minutes and repeated over two to three days should alleviate the burn. Over 220,000 shares on Facebook have made this unusual trick popular again.