Can try applying baby vicks on the chest and sole of the feet, then putting socks over. Some people also use olbas oil (just drip on tissue and put near baby, not to apply on baby) for congested nose. 1 month old don't have much med to take, only can use iliadin nose drops and paracetamol if she's running a fever. Nasal aspirator is helpful for runny nose coz she can't blow her own nose yet.
my Dr advise to give more breastmilk, it will cure
ditto... wish ur LO speedy recovery 🙏💕