Herb Headache Relief F1: Headache with acute sinus problems, with excessive discharge and swollen nasal membranes, chills and fever alternation.
1. Headaches: Four reports on 383 headache patients taking F1 for up to six weeks found 310 patients were cured (80.93%), 14 significantly improved (3.65%), 49 improved (12.79%) and only 10 did not improve (2.61%). Another three reports on 247 chronic vascular headache patients taking F1 up to three months found that 101 patients were cured (40.89%), 68 significantly improved(27.53%), 49 improved (19.83%) and 28 did not improve (11.34%). 
2. Neck pain and discomfort: Of 60 patients who took F1 for up to three months, 27 were cured (45%), 9 significantly improved (15%), 17 improved (28.33%). Only seven patients (11.67%) did not improve.
3. Bell's Palsy: 54 patients applied F1 externally for Bell's Palsy for up to five weeks. 50 patients were cured (92.59%), three significantly improved and one improved.
4. Allergy and antihistamine: In many lab tests, F1 shows great effects against many antigens except PGE2. F1 also kills the germs commonly found in chronic sinus patients' mucus discharge. A report on 12 acute sinus infection patients who were taking F1 for an average of six days shows 11 were cured and one improved.
Toxicity and side effects: There are no known side effects or toxicity of F1. In a lab test, mice ingested F1 at 50g/Kg for six days and no abnormality was found.