Dry cough caused by cold can be treated with oral anti-cold medications, such as Meguiar’s pseudo-lax capsule, compound mesafen tablets, Benoxate dispersible tablets, cold and flu granules, aminophenol pseudo-masmin tablets and other anti-cold medications, which can treat and relieve various symptoms caused by common cold and influenza, such as fever, headache, nasal congestion and sore throat. Blood tests can be performed and analyzed by blood picture. If the cough is caused by a viral infection, antiviral drugs such as ribavirin can be given for symptomatic treatment. If the cough is caused by bacterial infection, antibiotics such as penicillins, cephalosporins, macrolides and quinolones can be given as symptomatic treatment. You can also take oral Chinese medicines, such as Pu Di Lan Anti-inflammatory Oral Liquid, Blue Scutellaria Oral Liquid, Shuang Huang Lian Oral Liquid, Acute Branch Syrup, Powerful Loquat Loquat, Honey Refined Chuan Bei Loquat Paste, etc., to clear heat and detoxify the cough and resolve phlegm.