Thank you for your kind words. And, for your extra information.
The usual explanation for uric acid falling during a gout attack is to do with what happens during the attack. Uric acid crystals forming in the joint reduce the dissolved uric acid measured in the blood. But, other explanations re possible.
The main thing is to establish routines for uric acid tests so that you have a history. Then, we can look at how your uric acid changes over time, and in response to various treatments. Herbal medicines can reduce or remove allopurinol dependence. But, you need monthly uric acid measurement to know if this is happening safely. Allopurinol might be avoidable, but testing isn’t. Uric acid tests should always be accompanied with kidney function and liver function tests.
That gives you a safe environment for testing your herbal products. Remember, if they are any good at lowering uric acid, they are potent enough to have side-effects. Herbal does not mean safe. That is why I strongly recommend the kidney and liver tests.
If you are also struggling with diet, you might consider a combination of herbal medicines and diet improvements. You are absolutely right that it is impossible to avoid purines. First, there is no need to avoid vegetable purines. Second, animal purines should never be significant in a healthy diet. So, twice-weekly fish and twice-monthly meat should not significantly raise uric acid levels.
The easy way to manage gout is to take the correct dose of allopurinol that makes uric acid safe. Usually, safe means below 5mg/dL. Once you move away from the easy option, you have to investigate, measure, and plan in more detail.
I’m happy to support anyone who wants to lower uric acid with herbal medicines and/or lifestyle changes. It’s rare to find a gout sufferer who is prepared to put the time in to manage diet and herbal supplements in enough detail to make a difference.
If I were doing it, I’d start with a gout diary. Then, I’d commit a set amount of time to measure and manage my gout.
I realize that doesn’t really answer your specific question “could that explain my relatively low uric acid level of 5.9 (after day 6)”
I’m afraid it’s impossible to answer that without more uric acid test results. That’s why I’ve fallen back on the most common explanation. But, it’s better to have good data, rather than guessing.