A fungus infection of the nail (see under SKIN), caused by CANDIDA or DERMATOPHYTES (see also RINGWORM).
Habitat: Indegenous to Burma, Cambodia, Thailand, Malay Peninsula to Australia; grown in Indian gardens and parks.
English: Cajeput tree, Swamp Tea tree, White Tea tree.Folk: Kaayaaputi. (The oil of Cajeput is imported into India, chiefly from France and Netherlands.)Action: Oil—used as an expectorant in chronic laryngitis and bronchitis, and as a carminative. Acts as anthelmintic, especially against round worms. Enters into ointments for rheumatism and stiff joints, sprains and neuralgia, migraine, colds, influenza, and as a mosquito repellent.
Key application: The oil is antimicrobial and hypermic in vitro. (German Commission.)The oil contains terpenoids, 1,8- cineole (40-65%) as major component, with alpha-pinene, alpha-terpineol, nerolidol, limonene, benzaldehyde, valeraldehyde, dipentene and various sesquiterpenes; 3,5-dimethyl-4,6,di- O-methylphloroacetophenone.The essential oil of Melaleuca al- ternifolia (Tea Tree Oil) is indicated for acne, tinea pedis and toe and nail onychomycosis on the basis of human trials. (Sharon M. Herr.)Tea Tree Oil is distilled from the leaves of several species of Australian trees belonging the genus Melaleuca, principaly from M. alternifolia. Tea Tree Oil should contain a maximum of 15% 1,8-cineole and a minimum of 30% (+)-terpinen-4-ol, the principal germicidal ingredient. Other constituents, alpha-terpineol and linalool, also exhibit antimicrobial activity. (Cited in Rational Phytotherapy.)The essential oil of Melaleuca virdi- flora Solander ex Gaertner leaves, known as Niauli Oil, is used for catarrh of the upper respiratory tract. The oil is antibacterial and stimulatory to circulation in vitro. (German Commission E.) Like cajeput oil, the principal constituent is cineole (eucalyptol).A related species, M. genistifolia, indigenous to Australia, is grown in botanical gardens at Saharanpur and Lucknow (Uttar Pradesh). The leaves and terminal twigs yield 0.53% of a volatile oil which consists mainly of d-pinene, and about 2% cineole and traces of aldehyde.... melaleuca leucadendronTinea capitis Usually seen in children in Britain and caused by microsporum species of human or animal (frequently a kitten) origin. Typically, patches of ALOPECIA are seen with broken-o? hair stumps which ?uoresce bright green under an ultraviolet (Wood’s) lamp. In Asia a chronic, scarring alopecia may be caused by a speci?c trichophyton (favus).
Tinea corporis is usually due to trichophyton species and forms ringed (hence ‘ringworm’) patches of redness and scaling on the trunk or limbs.
Tinea pedis (athlete’s foot) is caused by epidermophyton or trichophyton species. Its minor form manifests as itching, scaling or blistering in the lateral toe clefts. More severe forms can be extensive on the sole. Trichophyton rubrum can cause a chronic, dry, scaling in?ammation of the foot, eventually extending into the nails and on to the soles and top of the foot which may persist for years if untreated.
Tinea cruris typically causes a ‘butter?y’ rash on the upper inner thighs in young adult males. It is usually caused by spread from the feet.
Tinea unguium (onychomycosis) Affecting the nails, especially of the toes, T. rubrum is the usual cause and may persist for decades.
Tinea barbae This rash of the face and beard is rare. It may be very in?ammatory and is usually contracted from cattle by farm workers.
Treatment Tinea of the toe clefts and groin will usually respond to an antifungal cream containing terbina?ne or an azole. Tinea capitis, barbae, extensive tinea corporis and all nail infections require oral treatment with terbina?ne or itraconazole (a triazole antifungal agent taken orally and used for candidiasis of the mouth, throat and vulgovaginal area as well as for ringworm) which have largely superseded the earlier treatment with the antiobiotic griseofulvin. (See FUNGAL AND YEAST INFECTIONS.)... ringworm
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