You shouldnât take codeine if you're allergic to it (or to any other ingredients in the drug) or have trouble breathing. If you experience any of the following after starting codeine, talk to your doctor, as you may be allergic to the drug: Itching; Rash; Hives. Before taking codeine, tell you doctor if you have: Kidney or liver problems; Seizures
Mucinex does help thin out mucus but doesn't do anything to reduce the swelling and inflammation in your sinuses. There are several medical options for reducing this inflammation: 1. Try switching from a neti pot to a NeilMed Sinus Rinse bottle.
Best Answer: Mucinex DM is used for cough and mucus build-up, so if youâre just experiencing the mucus I would recommend regular Mucinex (Guaifenesin) is an expectorant medication that will help loosen and thin the mucus that is in the lungs. This will help make a cough more productive in order to help remove a lot of phlegm and mucus.