Does anyone know of transdermal B complex/Vitamin D supplements, or have any suggestions for ways to get vitamins other than orally? I am currently injecting 1mg of hydroxycobalamin daily which is helping alot with my energy levels and has pretty much eliminated my brain fog. I want to supplement methylfolate and other b vits too as I have lots of signs of B vit deficiencies, and vitamin D (last blood tests showed I am D deficient), but I have enormous trouble tolerating any oral supplements. I have recently been diagnosed with probable Mast Cell Activation Syndrome, I have huge difficulty eating high histamine foods. When I take any supplements I get gut pain, diarrhea, urticaria, facial flushing and my skin problems worsen. This is really frustrating as the hydroxy injections have actually been improving my tolerance of foods, and improving my skin into the bargain. I took Vitamin D capsules 3 days ago and it has sent my gut and skin into turmoil again, undoing several weeks of what I presume was repair/healimg that the B12 had achieved. I feel I need to get these nutrients in me somehow, I have a very restricted diet due to the MCAS so dont get what I need from diet, although I make it as healthy as I can within my restrictions, and I am certain I have malabsorbtion too. I have noticed that my energy levels dip periodically which I think is when I dont have enough methylfolate for methylation, so I make a load of hummus and eat that which definitely helps but I am certain I would be better if I could take a supplement. I get extra minerals from Dr Myhills mineral transdermal spray (it also has some vitamin D in but a very low dose) which seems to work well for me, but can't find anything similar for B vits. Does anyone have a similar problem or have any suggestions?