Conventional therapies practised in the treatment of asymptomatic neuralgia, oral submucous fibrosis and paraesthesic numbness, are empirical and symptomatic in nature. These are usually prolonged and may be inadequate, impractical with complete or incomplete remissions associated with or without relapses. High dosages of drugs administered for longer duration, are also not infrequently without side-effects. With these problems in view, the clinical use of nylidrin hydrochloride a peripheral vasodilator, was experienced for over 10 years. Irrespective of age, sex and status, 97 cases were randomly extracted from the hospital and oral surgery clinical records. The projected sample included 33 cases of asymptomatic neuralgia, 58 cases of oral submucous fibrosis and 6 cases of numbness. Neuralgia, where mean age was 50 years, was treated with nylidrin hydrochloride, vitamin B-complex and carbamazepine. Oral submucous fibrosis where mean age was 38 years, was treated with nylidrin hydrochloride, vitamins A,E,B-complex, iodine, placental extract, local and systemic corticosteroids and physiotherapy. Paraesthesic numbness, following iatrogenic or accidental trauma to the affected nerve, was treated with nylidrin hydrochloride and B-complex therapy. Peripheral vasodilator administered in all 97 cases, initially contained low divided doses, which steadily were increased or decreased as per individual response. There were reportedly no side-effects, except complaints of flushingly warm skin. Supportive therapy with antibacterials, tranquilizers and analgesics, along with minor dental surgery, were given as and when required. The success rate was 72.16% in total, while individually it varied from 84.85% in neuralgia, 62.07% in oral submucous fibrosis and 100% in numbness.(ABSTRACT TRUNCATED AT 250 WORDS)