septic sore throat vs strep throat

septic sore throat and strep throat both are nouns.

Word	Noun	Adjective	Verb	Adverb
septic sore throat	Yes	No	No	No
strep throat	Yes	No	No	No

As nouns, septic sore throat and strep throat are synonyms defined as:

septic sore throat and strep throat: an infection of the oral pharynx and tonsils by streptococcus

Other synonyms of septic sore throat include streptococcal sore throat, streptococcus tonsilitis, throat infection.

septic sore throat (noun)	strep throat (noun)
an infection of the oral pharynx and tonsils by streptococcus	an infection of the oral pharynx and tonsils by streptococcus