The word "trichoaesthesla" is a challenging one to spell. Its pronunciation is [tɹaɪkəʊˈɛsθiəzɪə], which can help break down the spelling. The first part, "tricho," refers to hair and is spelled accordingly. The second part, "aesth," refers to sensation and is spelled with an "a" and an "e" together. The final part, "esla," is a bit tricky and could be spelled as "istle" or "estle" but finally, we come up with "esthesia" which means perception or sensation. So the full spelling is "trichoaesthesla."
Trichoesthesia.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.