Below are the main rubriks (i.e strongest indications or symptoms) of Kali Phosphoricum in traditional homeopathic usage, not approved by the FDA.
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Giddy when out of doors, agg. when facing sun.
Seasick without nausea.
Before menses violent tearing in forehead and sense of fatigue, amel. lying down and on menses appearing.
Burning in forehead during stool.
Sensation of a band round forehead just above eyes.
Neuralgia in r. parietal eminence.
(An aching nervous sensation in cerebellum and upper cranial region, with tenderness, involving entire head when aggravated.).
Soreness back of head, agg. pressure.
Neuralgia in l. mastoid process, agg. motion and in open air.
Occipital headache, lasting all night; frequent waking, with the pain amel. on rising.
Woke with pains in occiput and loins, amel. lying on back, passed off after rising.
Pains from l. eye to head, making him wretchedly ill; no amel. after sleep.
Dull headache across eyes, amel. outdoors; agg. l. side; l. eyelid droops.
Pain through base of brain from eyes to occiput, agg. night, amel. eating and gentle motion.
(Headache before and during menses; r. eye to occiput, amel. heat, pressure, lying down, eating, gentle motion; agg. noise; always hungry, with headache.).
Intense headache from emotions and physical effort.
Headache morning on awaking; with vomiting of sour phlegm; making eyes unable to bear light.
Pain across forehead and into both temples.
Neuralgic pain at base of brain and upper spine.
Heavy dull pain over eyes as if brain would expand but for cranial bones.
Sharp darting pain over l. orbit.
Intense itching on scalp, agg. morning after waking.
Back of head sore, as if hair being pulled; then as if hairpins sticking in.
Itching of scalp; bald and dry.≡ more ...