The Effect of topical Henna oil on pain in chronic sciatica patients

INTERVENTION: Intervention 1: First intervention group: Chronic sciatica patients use topically 10 drops(half a cc) of henna oil(in sesame oil base) on the low back and unilateral painful area from gluteal to middle posterior of thigh without massage, 3 times a day, for 4 weeks. Intervention 2: Second intervention group: Chronic sciatica patients use topically 10 drops(half a cc) of sesame oil on the low back and unilateral painful area from gluteal to middle posterior of thigh without massage, 3 times a day, for 4 weeks. Intervention 3: Control group: Chronic sciatica patients use topically 10 drops(half a cc) of mineral oil on the low back and unilateral painful area from gluteal to middle posterior of thigh without massage, 3 times a day, for 4 weeks. CONDITION: Chronic sciatica. ; Diseases of the musculoskeletal system and connective tissue M00‐M99 PRIMARY OUTCOME: Pain intensity. Timepoint: At the beginning of the study (before the intervention) and 7, 14 and 28 days after the start of the study. Method of measurement: Visual Analogue Scale. SECONDARY OUTCOME: Diclofenac tablets taken daily. Timepoint: during study. Method of measurement: Number. Disability. Timepoint: Before the start of the study and 4 weeks after the start of the study(the end of the study). Method of measurement: Oswestry disability questionnaire. Quality of Life. Timepoint: Before the start of the study and 4 weeks after the start of the study(the end of the study). Method of measurement: The Short form health survey 36 questionnaire (SF‐36). Skin side effects. Timepoint: Days 3, 7, 14 and 28 days after the start of the study. Method of measurement: Form of skin side effects based on CTCAE(Common Terminology Criteria for Adverse) version 5. INCLUSION CRITERIA: Patients with chronic unilateral sciatica pain (lumbar radiculopathy in this study defined chronic back pain that spread to a leg. Pain described as sharp, burning with numbness and/or tingling.) For at least 3 months and more Age 18 to 65 years Pain score of 1 or more on visual analog scale (VAS) of 0 to 10 Willingness of patients to participate in the study Patients without communication problems (vision, hearing, speaking and understanding) Pain not attributable to malignancy, inflammatory arthritis such as rheumatoid arthritis, or blood diseases and coagulation and infectious diseases Patients without congenital spinal abnormalities, bone fractures, scoliosis, kyphosis and spondylosis Patients are not candidate for surgery No history of surgery in the lower back No history of alcohol and narcotic abuse Body mass index(BMI) between 18.5 to 34.9