Relieves painful aching, blocked sinuses, neuralgia & post nasal drip. Eradicates problem overnight when applied as nasal drops directly into the nasal passages. Normal application would be twice a day for up to three or four days. Usually effective within 12 hours improving daily according to the severity of individual condition. SF/SIN 50ml $24.20 (you may need two if you have had the condition for a while.) Also now available in double size 100ml. aprx 4oz bottles.