First of all, it's better to get your vitamin D levels tested to see if you have a deficiency and how serious the deficiency is.
Second, it's best to start with a lower dose and work your way to a higher one if you can tolerate it. Be patient, it can take up to a few months to see results.
Third, if your acne actually worsens while taking D3 supplements, consider visiting a doctor to measure your levels and give you prescription D2. As I already mentioned before, I couldn't tolerate over the counter D3 supplements due to the yeast and oil they put in the capsules (even in dry tablet form, I tried several kinds). I did some research and discovered that D2 - which is slower acting than D3 - is plant-based and more suitable for people who cannot fully absorb D3 supplements (lanolin based). I don't really like the idea of taking the prescription strength synthetic D2, but this is the only form that is working for me. When the prescription is over, my doctor wants me to keep taking D supplements at lower doses, so I will need to find an over the counter D2 supplement rather than D3. I also try to get my D3 from fortified soy milk and sunshine, as those are the only forms my body accepts. There are separate tests for D2 and D3, and usually doctors tell you your cumulative so you need to ask them what each level is so you can figure out if D2 can work for you.
Probably should have mentioned this: I get a physical once a year and last year (September) my vitamin D levels were low so my doctor prescribed D2, 50,000IUs once a week. At the time I was taking minocycline prescribed by my dermo and I wasnt able to determine if it was helping with my acne or not. I did notice however, that when I took D2 a couple months back when I stopped taking anti biotics that no new pimples had formed for 3 days or so. Dunno if it was coincidental or not but my D2 prscription is up and my doctor works basically by himself so trying to get a hold of him is kind of hard. Then I read the OP around the same time so I thought Id give it a shot. I started at 2,000 and the first 7 days or so seemed like I was on my way to improvement but now after almost a month a new one comes up just about everyday again. Im at 5,000 now but was considering upping to 10. But then I also was going to try what that one poster recommended about Magnesium and K2. Does anyone else take Magnesium and K2 with their vitamin d3? Also the Magnesium I bought from Vitamin shop is Magnesium Citrate complex.
Any and all help is appreciated. Im going out to visit a very good friend of mine in another country in 3 1/2 months and Im already nervous that I won't get this controlled in time. I really dont want to do it but if I dont see improvement in another month im going to bite the bullet and go back to the dermo. From what they said, if what they suggested a couple months ago wasnt working (which was just a topical and no antibiotic) they were gonna put me on accutane again.
I know there are more pressing issues in the world so I shouldnt let this bother me too much but it really sucks knowing how nice you look when there is no acne vs when there is.