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.
Canker sores are self-healing and, since they are not caused by a viral infection, antibiotics are not prescribed for their treatment. Home remedies, such as coating an oral sore with tea or Milk of Magnesia, are more difficult to use on a canker sore in the throat, as some are not easily reachable.