Symptoms of ear infections usually include earaches or throbbing pain, sometimes a fever, and signs of inflammation near the ears like redness or fluid leaking out. Although antibiotics are assumed to be the treatment of choice for ear infections, you might want to reconsider this approach.
Two-stroke oil is different from regular motor oil. It is thin and specifically made to mix with gasoline in the gas tank of two-stroke engines. This is how the piston is lubricated in a two-stroke engine. Two-cycle oil is regular motor oil that you put in the oil filler hole on an automobile engine.
This means that a single-stage regulator has to be adjusted to maintain a constant pressure as thegas in the cylinder is used, but a two-stage regulator does not. Two-stage regulators are typically used when more stability of operation is required and are often used in specialty gas applications, like gas chromatography.