Severe cough, cold and fever at

My child is suffering from cough and cold from past one week 3 days back her cough reduced only cold is there from 2 days onwards night times she is suffering from fever.On 12/10/2021 we consulted a doctor he gave some medication but there is no improvement in her helath condition.So yesterday consulted another paediatrician first he told that baby is normal and then asked about previous medication so we showed all the medications we used.We told to doctor that cough is not controlling from past 2 days so he asked us to go for x-ray and then a blood test(C.B.P test) in which c.r.p is 25.5 so doctor told upto 18.5 it is normal.He asked us to admit my daughter for injecting saline for 4hrs and then daily 2 injections morning and evening for 5 days.As my baby is very weak we asked daughter to write medication we will see for 2 days if still it is the same we will come and admit like that we explained to my daughter.While doing x ray itself my baby got afraid and cried like anything.