patients and doctors better understand the condition. i will be talking to one specialist about this shortly. but first, let s hear more about it from a correspondent catherine burns. maria loved dancing, but she developed covid toe. now the 13 year old struggles to stand up for long, and needs a wheelchair if she is going far. she spoke to the bbc in the summer. my feet swell up and i get blisters all over them. the doctors never really said how long they think it s going to last for. so i m not really sure and i am quite scared, to be honest, because i don t know if i ll be able to do the things that i like to do. painful blisters, red or purple skin, raised bumps and swelling, covid toe can happen at any age, but is more common in children and teenagers. it tends to last for weeks, often in people who do not have any other covid symptoms. researchers in paris did blood