😔need medical help

What will i do to ease my newborn cough and colds.? Baby is 29 days old 3.3kg Pure breastfeed and eating well Doesnt have a fever We've been to hospital and the doctor prescribe us to use carbocisteine oral drops for 7days (june 20-27)but up until now -my daughter is still suffering from mucus and cough... What should i do? I'm out of budget and this lockdown is giving us a hard time to find open clinics that has pediatrician and also affordable. I'm afraid to go back again at public hospital.