In stochastic processes, chaos theory and time series analysis, detrended fluctuation analysis (DFA) is a method for determining the statistical self-affinity of a signal.
Sore throats caused by tonsillitis or streptococcus may trigger a canker sore even after the initial throat condition has subsided. Also known as an aphthous ulcer, canker sores are painful and unsightly, but they are not contagious.
1 Avoid spicy or acidic foods, which can irritate sores further. 2  Peppers and sodas should be shunned. 3  Fruits and vegetables such as lemons, oranges, pineapples, apples, figs, tomatoes, and strawberries may also cause canker sores. 4  Get more B12, zinc, iron, and folic acid. Empty the cap and rinse it with water. 2  Take care not to swallow any of the hydrogen peroxide if possible. 3  Hydrogen peroxide is an antiseptic that will reduce the amount of bacteria in your mouth and help the canker sore heal. 4  The canker sore should go away in about 2-3 days if you do it twice a day.