Prurigo pigmentosahttps://en.wikipedia.org/wiki/Prurigo_pigmentosa
Prurigo pigmentosa ose ma'i e seasea maua i le pa'u e le iloa le mafua'aga, e fa'aalia i le oso fa'afuase'i o papules erythematous e tu'u ai le hyperpigmentation fa'ama'i pe a fa'amalolo. O le ma'i e mafua i nisi taimi ona o le fa'atapula'aina o mea'ai.

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  • O lo'o fa'aalia i le mageso faifaipea e pei o se upega e pei o le hyperpigmentation.
  • masani Prurigo pigmentosa
  • E mafai foi ona tupu pe a maeʻa le paʻu vave vave o le mamafa.
References Prurigo Pigmentosa 38261670 
NIH
Prurigo pigmentosa ose ma'i e le masani ai le pa'u na fa'amatala muamua e Nagashima et al i le 1971. E masani ona a'afia ai tama'ita'i talavou e tupuga mai i Asia i Sasa'e ae mafai fo'i ona tupu i isi. E aliali mai e pei o se mageso tutusa o patupatu mumu i luga o le ua, fatafata, ma tua. O nei patupatu e masani ona fausia se mamanu pei o upega ma e mafai ona sau ma alu, ma tuʻu ai ni paʻu pogisa i luga o le paʻu. Prurigo pigmentosa e mafai ona faʻaosoina i suiga i le metabolism, e pei o mea e mafua mai i meaʻai ketogenic, lea ua sili atu ona lauiloa talu ai nei.
Prurigo pigmentosa, also known as Nagashima disease or keto rash, is a rare inflammatory skin disease initially described by Nagashima et al in 1971. Prurigo pigmentosa typically, but not exclusively, affects young females of East Asian ethnicity, presenting as a symmetrical eruption of urticarial papules on the neck, chest, and back. The papular eruption typically coalesces into a reticulated pattern that repeatedly resolves and recurs, resulting in hyperpigmented skin of cosmetic concern. Prurigo pigmentosa can be triggered by metabolic derangements, including those secondary to ketogenic diets, which have experienced a rise in popularity in recent years.
 Prurigo pigmentosa: A multi-institutional retrospective study 37001731
Prurigo pigmentosa ose ma'i o le pa'u e fa'afuase'i, mageso, mūmū patupatu i se mamanu pei o se upega soso'o ai ma ilauliuli. Talu ai nei, o nisi faʻamaoniga na faʻavaeina o le Prurigo pigmentosa e fesoʻotaʻi ma le ketogenic diet. E mafai ona aafia ai tagata o vaitausaga eseese ma itupa, faatasi ai ma se tulaga e sili atu ona taatele i tamaitai. I tulaga e le fesoasoani atoatoa le toe fo'i i se mea'ai masani po'o le fa'aaogaina o togafitiga o le pa'u, e mafai e foma'i ona fa'atonu se kosi o vaila'au fa'ama'i e pei o le doxycycline po'o le minocycline (100 mg fa'alua i aso ta'itasi mo le 1 i le 2 masina) .
Prurigo pigmentosa is a skin condition causing sudden, itchy, red bumps in a net-like pattern followed by dark spots. Lately, some evidences were founded that Prurigo pigmentosa is associated with the ketogenic diet. It can affect people of different ages and genders, with a tendency to be more common in females. In cases where returning to a regular diet or using skin treatments doesn't fully help, doctors may prescribe a course of oral antibiotics like doxycycline or minocycline (100 mg twice daily for 1 to 2 months).