If a plate with oceanic lithosphere meets another plate, the dense oceanic lithosphere dives beneath the other plate and sinks into the mantle: this process is called subduction. The sinking oceanic lithosphere drags the rest of the tectonic plate: this is the main cause of plate motion.
You may notice a decrease in symptoms during the build-up phase, but it may take as long as 12 months on the maintenance dose to notice an improvement. If allergy shots are successful, maintenance treatment is generally continued for three to five years.
A cortisone shot starts to work very quickly once injected, and most people find that relief begins within 48 to 72 hours.The duration is only 30-36 hours and is excreted in the urine or stool. Take care and regards. Cortisone injections are not the same form of illegal steroids used in the sports arena.