My LB (10 weeks) is currently going through his first cold, I obviously was recommended the Calpol plug in for him to help him breathe however I saw the boots own one was cheaper (cost of living and all that). However I didn't notice until I got home that it can't be used with children under 2 years, even though it's lavender and chamomile, like the calpol one. Is there any reason for this or would I be okay to use it anyway?