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Need help w/ mystery rash on 2yr old

My 2 yr old son has had a rash for a week that is not going away. We took him to the Dr, but they didn't really tell us what it was, just what it wasn't.
He has a ton of small red, slightly raised bumps. They range in size from a pencil eraser, down to half that size. Mostly on his stomach, chest, top of inner thighs, and armpit area. None on his whole backside, lower legs, hands or feet. Has popped up on face, but quickly went away.
They don't itch or seem to bother him. No accompaning fever.
No puss or any type of fluid inside.
They do blanch when pressed. When they start to fade they're flaky, similar to really dry skin. Most will fade, but not completely disappear, and new ones will pop up.
I haven't changed soaps, detergents, lotions, or diet.
He does have sensitive skin, and is allergic to Keflex/Cefalexin.
Have tried hydrocortizone cream, childrens benedryl, and special eczema lotions. Nothing affects it in any way. I've searched the internet and can not find anything that looks like this, or anything that would suggest what it could be a reaction to
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4851940 tn?1515694593
As the spots are getting bigger, you do need to take him back to your doctor.   Ask the doctor to take a skin swab and for it to be sent to the laboratory for analysis.

The skin rash does not look like a fungal infection.  Fungal skin infections usually itch.

Do you see when he is playing outside?  It could be that he is touching some type of plant that is causing this skin reaction.  

It may even be a reaction to the sun and heat.  Has he had sun cream applied to his skin?  He may be allergic to that.  

Is he still feeling well and with no itching?  Has he been touching any animals?  Ask him if he has been licked or scratched by any animal.  If so, then it is likely to be a bacterial problem.

Keep an eye on the spots and if you notice that they are like blisters, this may be chicken pox.   I had considered measles or German measles, but children do usually feel unwell with this.

I suggest you strip his bedding, remove all soft toys and books from his bedroom and vacuum thorough everywhere - every crevice, nook and cranny; his mattress, curtains.  

Don't use any soaps, bath or shower gels to wash him with, just in case it may be an allergy to any of these or to the shampoo that you use on him.

I suggest you see a different doctor at your surgery for a second opinion.  

Let me know how you get on.
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Avatar universal
The Dr didn't prescribe anything because he thinks it's just from playing outside. He said it's not infectious, and nothing food related. I'm getting frustrated because I'm sick of getting vague answers. I was told it will go away on it's own, but it has not only not gone away after a week, it's spreading down his arms and legs and the spots are getting bigger. The only thing I can think of is to take him to a dermatologist, but I don't have the money for it. I can try all your suggestions, but I wish someone could just look at him and tell me what it is he has. Is it viral? Is it bacterial? Fungal? What is it that I'm dealing with.
Helpful - 0
4851940 tn?1515694593
Although you have not changed your soap, detergent etc, does not mean that he hasn't got an allergy to the detergents and soaps that you are using.
If you use dryer sheets, he may have become allergic to those.
He may have an allergy to lactose in milk.

Did the doctor prescribe an antihistamine for your son?

He may have developed an allergy to something that he is eating, drinking or touching.  Has he been at a swimming at all or playing outside on the grass?  Do you have any pets?  Just things to consider.

Strip the whole of his bed and put the bedding on the hottest wash you can, vacuum the bedroom, every nook and cranny and if he has any soft toys that cannot be washed, put them into a freezer bag and freeze for a few hours to a few days to kill of any bugs.

The creams and lotions usually need to be used for a few days before any noticeable change can be seen.  You do need to be very careful with the hydrocortisone cream because this can thin the skin.



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Avatar universal
I forgot to add, he has 2 older brothers that it has not spread to. It is not infectious.
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