Welcome to Gaia! ::

Try some medical Acne cream.

No chocolate or oily foods (the most acne I get is a pimple at the top of my 4head that is covered by my hair) and maybe try some clean and clear

There is nothing that I know of that helps instantly, besides popping any blemishes, removing the core oils, and draining the fluid((if any)) to reduce the size then waiting for a scab to form and having a crusty look to your face in that area when you apply make-up.

There are special blemish concealers out on the market that help cover those pesky marks. The good ones have active blemish fighting additives as well.

To help fight the appearance of blemishes, use a DAILY exfoliate and cleanser.
For an example: I use Neutragena Daily Face Scrub, that affects blackheads as well, and Cetaphile facial cleanser for your skin type. I haven't had much luck with the Clean'n'Clear brand, it actually made my face break out worse.

Wearing a facial lotion that moisturizes and has a little SPF works well as a foundation too. It isn't as heavy or as oily as regular foundations and it holds onto the powder mineral base.

That's all I've got.

I suggest the tea tree oil line of skin care from the body shop. All natural stuff, yo cool

It works for my skin, and me and you seem to have similar problems (The oily nose, breakouts on the hairline).

To keep breakouts from coming onto your hairline though i suggest avoiding using shampoo or conditioner near where your skin breaks out. That stuff can make breakouts a lot worse, trust me ninja

I used to get bad acne and I find the best way to get rid of it quickly is to wash with something that has salicylic acid (cleans it, gets rid of dirt and oil) and then find a way to open the skin (the head of the pimple) without too much pressing. Pressing to pop it will cause the infection to go into your skin, creating more pimples. Then, because it's an infection, you can use a powerful over the counter antibiotic ointment. It should dramatically reduce it overnight. Continual washing around your hairline will reduce the acne there.

As for the nose, I like St. Ives Apricot Scrub (that gets rid of blackheads and such), but with strong medicines such as this, you will need to moisturize. It sounds funny, but with dry skin, your skin tends to over-produce oil.

To cover them in any emergency I have some basic products in my make up bag! I take one of those concealer sticks that looks like lipstick or the cream concealer with a concealer brush and apply it heavily to problem spots. Then I blend it with a make up sponge after letting it sit for a couple minutes. After that I add foundation and being it is cosplay I heavily apply foundation that is a single shade lighter to get the porcelean doll look. You will actually look like a ghost though so I take a powder that is a shade darker then my normal color to add accents and more coverage. This has always worked pretty well for me. The only problem I have is if somebody is talking to me they can see scabs and stuff like that but in all photos they can't see anything I don't want seen!

Apple cider vinegar (-NOT- normal vinegar!) has cleansing and acidic agents that have done me a world of help for treating acne and fading scar tissue!

I've also noticed a lack of suggesting good foundation primers and 'colored' concealers -- for example, using a green-toned concealer to help hide redness or the like.