Frustrated

My LO is 5 months and has been congested for the past 2 days but had a cold 3 weeks ago and I’m just tired of her getting so congested and she can’t sleep, every time I take her they tell me the same thing and it doesn’t seem like its working. She now has a lot of mucus and they are turning green but I feel like if I take her in they’ll tell me the same thing, 😒 so I don’t know what to do,