rash behind ears, tiny whiteheads on neck

[WannaBeJazzer]

Like another poster I have a flakey, itchy rash behind my ears where they connect to the head.  I guess this may be eczema?  But at the same time I've developed tiny whiteheads on both sides of my neck between the ears and clavicle.
There are also some of these present on my upper chest.  And at the same time I have a mild itchy rash in the contact area of my upper thighs and scrotum.

Are these connected?  This seems to have started 5 weeks ago when I went through a course of Zithromax for a sinus infection.

Appreciate your help.

[WannaBeJazzer]

Thanks for your advice.  I've been wearing loose open clothing below the waste to help there.  I take zirtec seasonally.  will try some calamine.

My wife is a long time sufferer of exzema and I can't help wonder if it's contagious...

Regards

[Bhupinder Kaur, MD]

Hello,
This rash seems to be due to eczema. Take some antihistaminic like Benadryl or Claritin and apply some calamine lotion on the rash. Also wear cotton clothes and keep the skin sweat free. If the symptoms persist then please get it examined from a dermatologist.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.