Timodine uses hydrocortisone to reduce the inflammation which causes itching. As that's a corticosteroid it's only available on prescription, so there will be no directly similar treatments available on an 'over the counter' basis.
However pharmacists really know their stuff and are often overlooked by people seeking appropriate medications. (Most pharmacies, even those in supermarkets, have a private room where you speak to the pharmacist in confidence). So, if you don't want to seek a prescription from your doctor, it might be worth talking to your local pharmacist. He or she may well know of a product which can help you.
Chris