Afrin
Works for: Stuffy nose
The advantage to topical nasal sprays with the active ingredient oxymetazoline (decongestant) is instant relief (orally administered meds can take up to an hour to work). Afrin lasts 12 hours. Don't use for longer than three consecutive days, otherwise, your sinuses may become dependent on the spray and lead to symptoms getting worse (Brooks).
Delsym Cough Suppressant
Works for: Dry cough
Any OTC medication with dextromethorphan (cough suppressant) will be helpful in battling a dry, hacking cough. Delsym offers sustained 12 hour relief (so you only have to take it twice a day). Plus, for those who dislike the taste of cough syrup, the adult dose is two teaspoonful’s versus one tablespoon for similar meds (Staff).
NyQuil Cold & Flu
Works for: Headache, dry cough and runny nose
The upside to multi-symptom products like NyQuil is that it simplifies dosages. However, make sure that you actually have all the symptoms that it treats, otherwise you run the risk of overmedicating and exposing yourself to unnecessary side effects (Michalopolous).