• monitor humidity of the room. too dry can worsen cough. • run air purifier / clean room to reduce dust that may irritate the throat. change bedsheets. • monitor her milk intake to ensure she drinks well and enough. some find thinner milk like goat milk to be easier to digest, this may or may not be relevant to u. follow your instincts. • clear her nose of mucus using suctions. • we generally don't recommend cough medicines for such young baby