My FAKs always have a topical anti-itch cream, like Cortaid. That's my top choice. Calamine relieves the itch but doesn't, in my experience, work as well, as well as being bulkier to carry, so I don't carry it. An anti-sting med like a bee sting swab is a good next choice for temporary relief. Last is Neosporin plus pain, it works better than nothing and I always have some, but it's not great for this.