I crave the smell of Vick's Vaporub. Is it dangerous while pregnant?

I'm 28 weeks pregnant and I crave the smell of Vicks. I don't need it or anything I'm not congested I just crave the smell! I lay in bed at night for hours sometimes fighting the urge to open to jar and just sniff it. Would that be harmful for the baby or myself? I've never craved the smell of something so much. Especially something I usually don't care for the smell of.