Olbas oil x 28ml being stuck indoors with a blocked up nose is miserable olbas oil to the rescue just a few drops on a handkerchief is all it takes to help unblock even the stuffiest blocked nose thanks to olbas powerful natural decongestant vapours and you can tuck the hanky into your pillowcase at night for soothing night time congestion relief to aid restful sleep for a really intense olbas experience put a few drops of olbas oil in a bowl of hot water lean over it and cover your he