An Ilkeston GP has urged parents not to panic after cases of Scarlet Fever have been confirmed in the area.
Pupils at St Thomas Catholic Primary, Chaucer Infants School and Cotmanhay Infant School have all had pupils suffer the illness.
All schools in the area have been provided with information on symptoms to look out for and what to do if a child appears to have the illness.
Dr John Ashcroft of the Old Station Surgery, told the Advertiser: “Although the number of cases in the area are higher than normal this is not something for parents to worry about.
“It can be treated with a course of antibiotics and it is extremely rare that there are any serious or lasting effects.
“It is difficult for parents as it is the time of year when there are lots of viral infections going round.
“If your child has a sore throat for two or three days and a temperature or is generally unwell but without cough or cold symptoms then make an appointment to see a doctor.
“Otherwise it will most likely be viral which will pass after a week without treatment.”
A total of 40 notifications in Derbyshire have been recorded during the first eight weeks of 2014, compared with 28 over the same period in 2013, according to Public Health England.
Chaucer Infants School headteacher, Catherine Beattie said: “We have had two confirmed cases and on both occasions we were in touch with parents to let them know.
“Information has been sent home so they know what to look out for and when to seek medical advice.”
Symptoms include a sore throat, a high temperature and a rash.
The bacterial illness is most common in children between the ages of two and eight years.
It can also cause the tongue to swell and cheeks to flush.