Mild to moderate myofascial pain in the neck, shoulder, and upper back regions in adults aged 20 to 60 years who seek treatment at a Thai Traditional Medicine Clinic. The condition is characterized by localized muscle pain, stiffness, or discomfort often associated with muscle strain, poor posture, or repetitive stress. The study aims to evaluate the efficacy and safety of a topical plai and cannabis leaf oil formulation compared to sunflower oil in alleviating these symptoms. Myofascial pain,
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age between 20 and 60 years 2. Muscle pain in the neck, shoulder, or upper back for at least 2 weeks 3. Baseline pain score of 4 or more using a standard pain assessment scale such as VAS or NRS 4. Willing to participate and able to provide written informed consent 5. No known allergy to any component in the plai and cannabis leaf oil or sunflower oil 6. No serious underlying condition that may affect pain assessment, such as rheumatoid arthritis, cancer, or central nervous system disorders 7. No use of analgesics or muscle relaxants within 1 week before study enrollment 8. Not pregnant or breastfeeding
Exclusion criteria
Exclusion criteria: 1. Development of allergic reaction to the plai and cannabis leaf oil or sunflower oil during the study 2. Serious underlying condition affecting pain assessment during the study period 3. Pregnancy during the study period 4. High fever with body temperature more than 38 degrees Celsius during the study 5. Voluntary withdrawal from the study for personal reasons
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pain intensity reduction Day 0, 3 and 6 Rating scale,Muscle tone Day 0, 3 and 6 Modified ashworth scale,Rang of motion Day 0, 3 and 6 Goniometer,Muscle tone Day 0, 3 and 6 Algometer | — |
Secondary
| Measure | Time frame |
|---|---|
| Adverse Drug Day 0,3 and 6 Adverse Drug | — |
Countries
Thailand
Contacts
Sirindhorn college of public health Phitsanulok