It looks like that blister is healing although it hurts a lot still.
The neighbour said she thought I really ought to dry my tent out from last Monday, So I considered it ad got it out the bag. Yew it was wet, wet, wet. In fact it made me put it in the washing machine, a thorough good clean would help and make it smell much much nicer. Then onto the washing line to dry. Luckily the birds didn’t use it for target practice. All dry and back in the bag now ready for the next adventure.