why should you avoid alcohol after b12 injection Shots Dosage for Adults: How Much and How Often Does Alcohol Cause Vitamin B12

Serious side effects are rare but can include severe allergies or dizziness

We scoured the medical database looking for reactions to any form of B12, and all we could find were ten cases (which all happened in reaction to either cyano or hydroxy B12, not the other forms)

On the other hand, one study has suggested that biotin might be helpful in cases of comedonal acne (the type of acne with whiteheads and blackheads) when it is associated with excessive oil production (seborrhea)

Adverse events were defined as a skin reaction at the site of injection, fever within 30 days of the vaccine, or enlarged or tender lymph nodes

Roynette CE et al

Trying over-the-counter pain relievers if needed