Ricola herbal immunity help soothes sore throat and Cough. They are made with soothing rosemary, spearmint, and chamomile extracts. Ricola was introduced in 1891 as a sugarless herbal remedy for treating chest infections, but it quickly became well-known for its refreshing taste.The Ricola Sugar-Free Original Herb Swiss Herb Lozenges are sugar-free, herbal options from Ricola. The lozenges are made with peppermint oil and spearmint oil, which give them a refreshing taste.