Common thyme has a very long history of folk use for a wide range of ailments[218]. It is very rich in essential oils and these are the active ingredients responsible for most of the medicinal properties[218]. In particular, thyme is valued for its antiseptic and antioxidant properties, it is an excellent tonic and is used in treating respiratory diseases and a variety of other ailments[254]. The flowering tops are anthelmintic, strongly antiseptic, antispasmodic, carminative, deodorant, diaphoretic, disinfectant, expectorant, sedative and tonic[4, 7, 21, 200, 218]. The plant is used internally in the treatment of dry coughs, whooping cough, bronchitis, bronchial catarrh, asthma, laryngitis, indigestion, gastritis and diarrhoea and enuresis in children[238]. It should not be prescribed for pregnant women[238]. Externally, it is used in the treatment of tonsillitis, gum diseases, rheumatism, arthritis and fungal infections[238]. The plant can be used fresh at any time of the year, or it can be harvested as it comes into flower and either be distilled for the oil or dried for later use[238]. Thyme has an antioxidant effect, thus regular use of this herb improves the health and longevity of individual body cells and therefore prolongs the life of the body[254, K]. The essential oil is strongly antiseptic[4]. The whole herb is used in the treatment of digestive disorders, sore throats, fevers etc[4]. The essential oil is one of the most important oils used in aromatherapy[7, 210]. Its keyword is 'Bacterial'[210]. It is used especially in cases of exhaustion, depression, upper respiratory tract infections, skin and scalp complaints etc[238]. The oil can cause allergic reactions and irritation to the skin and mucous membranes[238].