Baby Boy Has a Cold

Our 8 week old son has a cold. He tested negative for flu and RSV. He sounds so congested sometimes and has a cough. So as instructed by the NP I'm keeping his nose clear as much as possible and running a cool mist humidifier. It doesn't help we live in Georgia and the weather goes from warm to cold all the time. I literally have to check the weather every morning to know how to dress myself and my kids. I think in part has to do with why everyone is getting sick.