After a cold two months ago, my husband is still coughing, a dry cough. He says his throat feels irritated.

Yes, in cases of a dry cough, it is recommended to try a cough syrup to help reduce the irritation in the throat. There are various cough syrups available at pharmacies, such as DM syrup or more effective options like Ulone™. It would be beneficial to discuss this with a pharmacist to find the best option to help alleviate the cough and throat irritation.