Cold and Allergy Meds in Aberdeen, Scotland

One of the things I didn't consider when moving to Scotland is that brands of medicines would be different. Unless you know the active ingredient, it's difficult to explain what you are looking to buy. In the U.S. I liked to use Zyrtec for my allergies; here it is called Cetrine. Have a headache as well? Then, you'll probably want Paracetamol. If you are like me where your allergies often cause coughing or turn into a cold, Benylin seems to work best. Hope you don't find this post too useful, because that means you are miserable like me.

Are there any other medicinal recommendations that I may find here? Much appreciated. :o)