Catarh or Catarrh: How To spell?
The word Catarh is misspelled against Catarrh, a noun meaning "An inflammatory affection of any mucous membrane, in which there are congestion, swelling, and an altertion in the quantity and quality of mucus secreted; as, catarrh of the stomach; catarrh of the bladder."
Catarrh has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings cata & h which should not be misspelled with single 'R'
Wrong Spelling:  cata-r-h  Correct Spelling:  cata-rr-h 
Browse incorrect spellings of Catarrh to spell it good.