I had my rhinoplasty 2 days ago. Excessive mucus/phlegm, can I take Mucinex?

I had my procedure 2 days ago. I feel pretty well considering I just had surgery. However, the excessive mucus/phlegm in my throat is becoming unbearable. I can’t swallow without dry heaving or almost choking on it. I’ve been rinsing my mouth almost every minute, is there anything I can do/take to help alleviate this? Would mucinex help dry it up?