Congrats on the upcoming wedding. Rosacea is chronic and not all causes are known, which makes it difficult to treat. You should keep a journal of what seems to cause a flare up, so that you can avoid that. In the meantime, with one month before the wedding, I would get on oral and topical antibiotics as a quick emergency measure. I also strongly recommend that you consult with an expert at the healthfood store / natural market for new and natural treatments for you. You want to reduce the inflammation and the breakout. Do not rub or touch your skin to much, do not use products that contain alcohol, use products that are labeled noncomedogenic. These won't clog your (pores) as much.
When you wear makeup, consider using green- or yellow-tinted pre-foundation creams and powders, because they're designed to counter skin redness.
A good dermatologist should be able to advise you on an emergency treatment to have your skin look its best for the wedding. The truth is that this is a long term condition and you are looking for the best emergency measure.
You don't want to try anything too new and unfamiliar because you don't want any surprisingly unwanted effects. Look at the website below for more info on treatments and also surgical intervention is mentioned. I do not recommend it for you at this time because you only want to do things that are guaranteed to have a positive affect.
" Many over-the-counter skin care products contain ingredients such as acids, alcohol and other irritants, that may actually worsen rosacea."