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 Canker sore symptoms begin with a tingling sensation, followed by a red bump that becomes an ulcer. Dental abscess A dental abscess, a severe tooth infection, can cause throbbing pain, swelling, redness, fever, and more. Viral pharyngitis Viral pharyngitis is a sore throat caused by a virus, and causes throat pain and cold-like symptoms.