... traumatic hemorr-hage , heatstroke , itch , headache , strain , scald , fatigue . 2) hot compress : alleviate rheumatic pain , neural pain , sciatica , vertebral pain , improve ... into fridge for at least half an hour before use2) hot compress: put the mask into microwave oven for 30 seconds ... a medium setting to get ideal temperature , or put it in hot water for 10 minutes . 3) it's suggested to cover ...