b12 injection gave me fever what does it mean Doctor Reveals Facts About Injections Pernicious Anemia: Definition, Symptoms, Causes

Nicotinic acid in the bloodstream can lead to skin flush

Vitamin B12 is a water-soluble vitamin, meaning that your body excretes what you dont need in your urine, including any excess consumed via supplements or food

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After injection (monitoring phase) Immediately: Apply cold compress for 10 to 15 minutes First hour: Monitor for any unusual symptoms beyond the injection site First 24 hours: Repeat cold compress every 2 to 3 hours if a reaction develops First 48 hours: Apply hydrocortisone 1% twice daily if redness or itching persists Day 3 to 7: Switch to warm compress if swelling or lumps remain

Vitamin B complex refers to a group of essential water-soluble vitamins that play a vital role in maintaining overall health