Someone help me pin-point, please?

I found exactly what I had online once before, but now I can't seem to find the discussion/forum/etc site that I initially found my foot problem on again

So, I thought I'd try here. I know for a fact these aren't hives/urticaria. This situation is very similar, but they're not hives, not Chilblains and definitely not an infection.

The symptoms are very similar to hives only there are no raised welts and they only appear on the bottoms of my feet. This is what I experience when my allergies:

Warm, red, sore, itchy patches on the bases of my feet and heels. They can be many or few depending on the severity. They can tend to be very painful to walk on given the severity. The patches are not raised, there is no discharge, no anything out of the ordinary. My feet look normal except for the fact that there are warm, red, sore, itchy patches on the bases and sides of my feet and heels. Sometimes my little toes have swollen up if it gets really bad but that's a very, very rare occurrence and hasn't happened for a few years, now.

Usually antihistamines seemed to take care of the problem, but they're not working as well this allergy season as the past allergy seasons.

I don't believe it's Erythromelalgia, either, as there's no severe swelling in most places and the only places on my feet that are warm are the patches themselves. Any other place on my feet is normal.

Help, please? If necessary I can try and take a picture though they're not very visible right now, although they're there.