 If you liked
Kigeki Ekimae Gyakusatsu
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 ...then you might like
Itou Junji Kyoufu Manga Collection: Namekuji Shoujo
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This recommendation is for the Shiver one-shot from Namekuji no Shoujo and for the Punctures in Front of the Station one-shot from Kigeki Ekimae Gyakusatsu.
Both are short horror stories with body horror that involves having an absurd degree of holes in your body - definitely not something to read if you have easy triggered trypophobia. Both are by authors who focus mainly on short horror manga.