Thanks for your query.
Your baby is having acute gastroenteritis
with respiratory infection which in mostly viral in nature and it will take few days to settle.
I advise you to continue giving her breast feed after each loose stool
.also give oral rehydration solution sip by sip,also give lactobaccilus sachet for 3 to 4 days,most important in diarrhea
is to maintain proper hydration.
For cough give steam inhalation.
In case symptoms persist,take her to pediatrician
Your daughter will be fine,