Effects of wet-cupping on blood pressure in hypertensive patients: a randomized controlled trial.

Wet-cupping (hijama) therapy is effective for reducing systolic blood pressure in hypertensive patients for up to 4 weeks, without serious side effects. Wet-cupping should be considered as a complementary hypertension treatment…
See link for scientific study https://www.ncbi.nlm.nih.gov/m/pubmed/26559364/