Warnings on products that say "not under ___ age" are more saying they can't promise it's safe while they can with a 3 month old. If it's helping that's better than anything, baby skin is just more sensitive for some than others
Don't worry ur completely fine just use a little as possible the fumes can be hard on the lungs in large amounts
you’re completely fine, i’ve been giving my son vicks since he was a few weeks old, it just says that because baby skin is sensitive, just don’t use a whole bunch
We didn’t do Vicks so I’m not sure if it’ll be safe still. However, if you’d rather try a safer alternative then we use Zarbee’s soothing chest rub! It’s organic and safe for 2 months+ , we still use it every time baby gets sick