Non-itching rash on trunk only?

[aless02]

I have recently developed a completely non-itching, non-painful rash all over the front side of my trunk/torso.  It has been around for about 5-7 days now and has not shown sides of abaiting.  It has spread only SLIGHTLY since first appearing and has not been contagious to my partner.

The rash is a tons of little red bumps that look like mosquito bites or similar.  They do not itch in the slightest.  The only 'different' drugs I have taken recently have been norethisterone and a couple doses of some anti-water retention OTC meds (completely herbal, I might add).  I haven't taken these drugs since the rash started, yet the rash has not gone away.

What on earth could it be?

[Jakelhome]

Did you ever figure out what it was? Im having exact same rash but I don't take any meds.

[Dr_Aparna]

Hi,
This could either be a heat rash or a drug reaction.Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with Norethisterone. Because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.
Rash
Depression
Irregular menstrual cycle
Breast tenderness/swelling
Nausea and vomiting
Weight changes
Headache/migraine
Changes in sex drive
Menstrual spotting between periods
Irregular brown patches Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.
Rash
Depression
Irregular menstrual cycle
Breast tenderness/swelling
Nausea and vomiting
Weight changes Headache/migraine
Changes in sex drive
Menstrual spotting between periods
Irregular brown patches on the skin of the face and elsewhere (chloasma).
The rash will subside eventually as the drug levels in the body fall.If it persists or increases please see a doctor immediately.
ref:http://www.tiscali.co.uk/lifestyle/healthfitness/health_advice/netdoctor/archive/100004333.html