Rapid responses are electronic letters to the editor. They enable our users to debate issues raised in articles published on thebmj.com. Although a selection of rapid responses will be included online and in print as readers' letters, their first appearance online means that they are published articles. If you need the url (web address) of an individual response, perhaps for citation purposes, simply click on the response headline and copy the url from the browser window. Letters are indexed in PubMed.
Over 45 years of medical practice it is my opinion that chilblains,
which are much less common than they were, are caused by the rapid heating
of cold feet.
This usually happens when children, and it is usually a child, come
home from play in cold weather and put their feet on a radiator to warm
up. It is the rapid warming that does the damage and a warning to desist
usually solves the problem.