You should change your tampon regularly every three to four hours. You should also use the least absorbent tampons you can – so don’t use a ‘super’ tampon if you’ve only got a light flow.
Symptoms of TSS
If you show the following symptoms, it's possible that you are suffering from toxic shock syndrome.
- Sudden high fever
 - Headache
 - Diarrhoea
 - Aching muscles
 - Faintness and tiredness
 - Passing less urine than normal
 - A rash like sunburn appearing within 24 hours
 - Bloodshot eyes
 
If you’ve had a tampon in for a long time, perhaps because you forgot to change it, and you get any three of these symptoms, call your doctor immediately. Stop using tampons and switch to pads.