I took nyquil about 5 hours ago but woke up with a persistent cough. i took some hydrocodine cough medicine 5mg. is that safe?

Cough: It is safe to take hydrocodiene if you do not drive or operate heavy machinery because it will make you drowsy. Opioid/ hydrocodiene is not the first line treatment for persistent cough . you should try OTC guaifenesin/ dextromethorphen around the clock to relief cough. If it doesn't work chest ray, allergy test. emperic antibiotics , medications review smoking cessation are other options