Baby teething sickness

Hello everyone!

My baby is 6 month old and she has a slight fever, not going over 100°F. She has been teething the past 3 weeks but it has been bad the past few days now. She's been crying a lot in pain. Id like to make it as natural as possible. Also she has been coughing and sneezing. We have been pretty sick as well the last couple of days. Is it safe to bring Baby out for some fresh air? It is winter time here in NJ today. What are your view on ACV bath Also?

Thank you everyone in advance.