What the puff is this rash? (Photo)

[UmopapIsdn]

I just noticed it when I came to bed. Almost all of the skin is smooth and just feels like my normal skin - not raised, or bumpy, or scaly.

Though the tiny slightly redder area I’ve marked in the pic feels like a small lump and is sore.

Reaction to a bite maybe?
Take some antihistamine and see if it goes.

I'm very reactive to any types of of insect/mosquito bites and this looks like what happens to my skin. I take antihistamines and use bite cream as a first stop but often end up at GP if the redness continues to grow for further treatment. I've found allevia antihistamine is the only one that does the job for me.

I had no idea a bite could cause such a reaction! Thanks, both of you 😁