FTM, I need advice or help

Daughter is only 6 weeks old. Today she woke up with mucus in her eyes and a bit puffy and she’s a bit congested and has a slight cough. I plan to buy a humidifier tomorrow but I’m not sure why her eyes have a lot of mucus coming out. It’s not red but it is a bit watery and every time I clean the mucus out her eyes more comes out. I plan to call her pedestrian tomorrow but I’m so stressed because she’s breastfeeding and has a hard time breathing through her nose…

What’s the best humidifier I can get to help her breathe at night? Must be at Target or Walmart