I found some information for you :) Which one is yours?
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CANTHARIS: raw burning pain, with soreness and smarting, skin becomes
inflamed. Skin feels relieved by cold applications. Emotionally: anxious, weeping,
Generally: feel like they are burning inside. Aversion to drinking any fluids even
though thirsty.
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BELLADONNA: Dry, hot skin: throbbing, red, burning. Flushed face, staring
eyes, feverish. Very thirsty for cold water or completely thirstless, even
though feverish; may have nausea and vomiting after fluids. Delirious.
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PULSATILLA: sunburn with heat rash. Feels chilly despite sunburn, with
weepiness and strong desire to have someone near to them constantly.
Thirstless.
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SOL: sun headache, photophobia, anxiety, headache with heat in the face,
heat in pit of stomach, vomiting. Feels cold inside. For those who sunburn
easily or for long term effects of sunburn
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URTICA URENS: red blotchy sunburn with violent itching and stinging
burning heat. Itching skin rash after sun. URTICA URENS cream soothes
burns.
Severe sunburn should be treated as a medical emergency, like any other
burn to the skin. Seek medical help in addition to homeopathic first aid.