Allergic reactions that suddenly appear may be due to the immune system reacting strongly due to a change in its sensitivity. This may be a symptom of being 'run down' for too long, excessive emotional stress. etc.

One suggestion (and I do apologize if it sounds 'glib') is to improve your 'general state of health'.

I can't really suggest what would assist you in improving this, since I know nothing about you, and you can be distracted by all sorts of weird nonsense that various people are trying to promote.

Your 'strap socks' and similar methods are useful, for any process that isolates you from whatever irritant is promoting the reactions is useful for a start.

Sadly since it can be difficult to find an 'elegant solution', which cuts thru to the underlying problems, perhaps symptom alleviation is the best first step. Are you able to investigate various 'anti-histamine' products? Some herbal methods can provide anti-histamine type relief, but I'm not an expert. Also, the cost of such 'alternative medicines' may exceed the cost of effective prescribed, or over the counter methods.

Best wishes may be the most I can do at the moment sorry. Hope your music can continue without too much restriction - it can help your emotional mood!