It is not: Likely due to the sudafed or mucinex, (guaifenesin) likely nothing to worry about and sometimes we never find out the cause. Good luck.
Answered 10/7/2013
4.8k views
8 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question