Hello. Blood with cough may be due to rupture of tiny vessels in the airways. This is because cough generates lot of pressure in airways. It may be wise to consult your pediatrician so that he can qexamine her and make sure all is well.
Next Steps
Meanwhile you could use cough medications like ascoril 3.5 ml thrice a day.also u could use cetrzine 2.5ml twice a day for cold.
Health Tips
watch for fast breathing and chest indrawing.