Ketter says
In the UK, intramuscular (IM) administration is standard practice for hydroxocobalamin, though subcutaneous (SC) may be used if specifically advised by your healthcare provider and following appropriate training
Treatment: There is a range of potential treatment options for eczema, and the right one for you ultimately depends on how severe your eczema is
If you cant find 4-5 mm needles, 6-8 mm ones can also be suitable as long as you inject into an area with enough fat, such as around the belly button
Studies suggest 3065% of products may be contaminated or mislabeled, with risks including endotoxins, heavy metals, and incorrect sequences
However, there are alternative ways to obtain B12 injections that don't necessarily involve a traditional doctor's office visit