Hi. I'm full of cold, it's a head cold so nose all stuffed up and I can't breathe at night. I've put olbus oil on a hankie and left it on bedside table so about a foot from my head. Is it safe? It says on the packet to only use medications when pregnant if absolutely necessary - a bit confusing. Doctors are manic so can't ring to ask advice as no telephone appointments this week. Thanks ladies x