4 year old child, cold with a good cough, what else can be done to help?

Hello, my 4 year old daughter has had a cold for 5 days with a rather hollow cough, she often has coughing fits, especially in the evening. She breathes well, no fever, she is not amorphous either... we do the sinus rinse at least 3 times a day. She also has recently been prescribed pumps (Apo salbutamol 4x a day as needed and flovent 1x a day) which we started as soon as her cough started. Is there anything else we can do? Could she have another infection? When should I consult if her cough doesn't get better? Thank you so much for your help!