Can vitamin supplements cause allergic reaction?
Some people may also experience severe allergic reactions to certain multivitamins, although this is very rare. If you notice hives, difficulty breathing, or swelling of the face, tongue, lips, or throat after taking a multivitamin, seek emergency medical help immediately.
What does an allergic reaction to vitamins look like?
Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat. Very upset stomach or throwing up.

Can taking vitamins give you a rash?
A vitamin B12 sensitivity can appear as a rash after you take a supplement. A severe allergic reaction, known as anaphylaxis, can occur after taking large amounts of vitamin B12 orally or as an injection.
What vitamin can cause hives?
How does this relate to vitamin D? Decreased serum vitamin D concentrations have been linked to disturbances in immune function and may contribute to the development of chronic hives and other allergic diseases.
What does a vitamin b12 rash look like?

Vitamin B12 is essential for every cell in the human body (animals too), so it may seem strange, but some people are allergic to it and they can suffer either an acute or chronic itchy rash that can have small blisters containing a clear fluid, skin that is red, swollen, oozing, or peeling.
What does a b12 rash look like?
Can vitamin D make your skin itch?
Skin rashes You may experience red, dry and itchy skin due to vitamin D deficiency. Intake of vitamin D can help you treat such skin problems. It can also reduce skin rashes.
Can taking vitamin D cause hives?
You may also consider testing for allergies and vitamin B12. Supplement where needed. If you are found to be lacking in a certain nutrient, like vitamin D, which is causing your hives, talk to a doctor about finding a trusted, quality supplement. Enjoy vitamin D-rich foods.
Can you get hives from supplements?
Additives: Colorings and preservatives used in foods, vitamins and other supplements, spices, cosmetics, skin care products, toothpaste, or other products can trigger hives. Hives usually appear within 12 to 24 hours.