In acute illnesses the response tends to be fast, and in some cases nearly instantaneous. It is commonplace for a child screaming with pain one moment (perhaps from teething or an earache) to calm down a minute or two later and fall asleep – after a dose of, say, Chamomilla. On the other hand some chronic problems of many years’ standing may improve slowly and gradually. As might be expected, complaints which have developed slowly over many years generally take longer to cure than those which have developed recently, though signs of improvement may be seen soon after starting the treatment.