I was confirmed to have covid-19, i self-isolated for 14 days. my concern is with my 1 year 6 months son nabi who has been caughing. ?

Keep isolated: The baby very likely has the infection. However, the data are very reassuring on children less than 10 year old. I am certain there has been no deaths recorded. Treat as you would if the baby had a cold. Follow the following isolation guidelines: https://www.healthtap.com/blog/covid-19-care-guidelines/self-quarantine-guide I think you will find this improving in a few days.