For most of us, a hot or even a cold shower is luxury. For 26-year-old mom Joanna Watkins, it is torture. She has an extremely rare condition called Aquagenic Urticaria—a water allergy.

Hanna Newnham, from Brighton, first noticed symptoms of cold urticaria – hives that appear after cold temperature exposure – after recovering from Covid-19 in 2020. The hives first appeared in ...