Letters destined for Canada and Mexico - for the (1) ounce first class letter cost $1.15 with the global forever stamp - applying to all international destinations. To be sendable by the USPS: a letter must have dimensions of no less than 3-1/2 inches tall with a maximum of 6 1/8.
Q: How often do doctors give cortisone injections to a patient? A: We try to limit the injection to one every three months for any single joint, but also we like to limit it to a total of six injections a year for the whole body. We know that the cortisone can sometimes weaken or suppress the immune system and, in diabetics, it raises blood sugar.
How often should you have a tetanus jab and is there a limit to how many you can have? As a general rule you should have a tetanus booster every 10 years because immunity is provided for this length of time from each immunisation. If it has been longer than this since a previous injection, a course of injections will boost your immunity back to fully protected levels and enable the 10-yearly cover to restart.