Thank you for looking at my question. I have a family staying with me. Their newborn baby boy is a little snuffly but otherwise well and healthy, 3 weeks old now and while full-term [caesarian] he is not a large bub, breastfeeding with frequency and success as suitable for his age. His nasal opening is quite small. adults all have the dreaded winter throat and new mum thinks baby is also suffering from the bug but I ve told her he s not otherwise unwell and is most likely still sneezing out his pre-birth fluids and mucuses . Is a low dilution of Vicks and/or eucalyptus steam infusion in the bedroom or sitting room for the purpose of helping the adults compatible with good care for the baby?