Baby is having cold and cough, I am thinking of keeping Beetle leaf on his chest but I don't have mustard oil so, what should I put on the leaf and then heat it

A. Take some carrom seeds and wrap it into that beetle leaf okay and after that warm it a little and keep it on the chest of the child and on top of that you can do hot compress even if you want you can dry roast the carrom because that is also going to provide good warmth to the body