Below are the main rubriks (i.e strongest indications or symptoms) of Petroleum in traditional homeopathic usage, not approved by the FDA.
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Itching at night
Chilblains, moist, itch and burn
Skin dry, constricted, very sensitive, rough and cracked, leathery
Slightest scratch makes skin suppurate ( Hep Sulph Calc Hepar.) Intertrigo; psoriasis of hands
Thick, greenish crusts, burning and itching; redness, raw; cracks bleed easily
Rhagades Worse in winter.≡ more ...