How long does moxibustion last in dog days?

Generally speaking, the "dog days" begin after "Little Summer" in the 24 solar terms, and span the three solar terms of "Little Summer", "Big Summer" and "beginning of autumn", and are divided into three days: the first, the middle and the last, with 30 days and 40 days in some years. In order to adapt to the weather, the application for treatment is arranged on the first day of the first, middle and last three days. Dog days last for 40 days. In order to ensure the consistency of treatment and make the interval of each medication the same, it is generally added once, which is called "strengthening moxibustion". For example, this year, most hospitals set the sticking treatment in July 14 (initial moxibustion), July 24 (middle moxibustion), August 3 (strong moxibustion) and August 13 (final moxibustion). It is generally believed that three years is a course of treatment. Need to be reminded that in fact, acupoint application as a treatment method is not limited to dog days. The data show that acupoint application in dog days and non-dog days is effective in preventing the onset of "winter disease", but the former is better. The biggest difference between this year's application and previous years is that this year's "dog days" are actually four volts. Therefore, those who persist must persist for four times.