Hello everyone! My daughter is exactly 1.4 years old and she got sick…

Hello everyone! My daughter is exactly 1.4 years old and she got sick with a cold! She has phlegm, coughs, her throat is red, temperature, we're getting injections today for the first time! Will it help? Are there any folk remedies? I'm very afraid because I just gave birth two weeks ago! My second daughter also starts coughing, what can be done???? My throat is starting to hurt too.