I have rosacea too, very calm ATM though, & mainly redness / flushing, with a few papules thrown in. Have taken antibiotics in the past - clarithromycin in my case, shown in various studies to be as effective as tetracyclines, which I'm allergic to. I'd certainly take it again if necessary.
Which antibiotic are you on, OP? If you can tolerate tetracyclines, you should be offered low-dose - not standard strength - doxycycline. It's called oracea in the US, efracia here in the UK I think. It works at a submicrobial level so there aren't the same issues with antibiotic efficacy & overuse. Antibiotics work for rosacea because they tackle the inflammation, not because of their actual antibiotic activity.
You should be offered a topical treatment as well as oral antibiotics if things are bad. Finacea (azelaic acid) worked wonders for me, & I still use it. Metrogel / metrocream work for some people, though going on anecdotal evidence only I'd suggest finacea is better.
Some people's rosacea does seem to respond to dietary changes. For others - including me - there's no discernible connection.
When I was first diagnosed I tried tonnes of stuff - supplements, oils, creams, etc. etc. Nothing had any obvious effect except that some of the essential oils caused dreadful reactions. Oh, & I wasted lots of money. 
I still take a multivitamin, probiotics & fish oils, & stick to a very simple skincare routine. I'd strongly advise introducing only one major change at a time and observing the effects carefully. And I wouldn't stop a prescribed treatment at the same time as trying something new, which again just muddies the waters. You end up not having a clue what's doing what.
Oh, & there's the whole issue about demodex mites, too, and whether they are involved in the condition. They're found in greater numbers than normal on the skin of people with rosacea, but they also are in other inflamed skin conditions, so it's a bit of a chicken / egg thing. If they are involved, it does seem that they're more likely to be a factor in the Type 2 rosacea you have (involving spots) than in the Type 1 redness / flushing subtype. May be worth discussing with your GP if s/he is clued up. I have heard of people trying oral anti-mite treatments, under medical supervision.
If the oral antibiotic / topical combination don't improve matters significantly in a couple of months or so, can you ask to be referred to a dermatologist? They tend to be able to offer a wider range of treatments.