Vicks Vaporub

My baby is 6 days old and she is wheezing upon checking with doc they said it’s normal for new born. But I can feel she has phlegm in her chest so I bought Vicks Vaporub and rub on her chest, throat and her back. As I’m not aware of baby Vicks. Advise me if anyone has experienced with me. This is the product that I used. Tq