worried about my baby

my son has this little red spots all over his body and i need to know what this is. I took him to the er but they didnt tell me much. Im going to take him to his dr. But I want to know what this is.He just this today about 5pm on may 6. My husband pick him up to tell him bye bfore work and he was fine and then got him to get him ready to go to the store and i looked at him and he had all this little red spots all over his body and this is every where. He does not do anyhting differnet in the day. We play inside, he eats fine, he does pretty much every thing the same. I took him to the er and they told me to give him Benadryl so I did and I gave it to him about 9pm on may 6 and i went to check on him about 12:30am or so and it looks the same. I really what to know what this is. What should I do? Please help

[tanns]

Has he had any antibiotics lately?  My son had amoxicillin on a Thursday and the following Wednesday he started looking spotty.  He had a rash all over and I was convinced it was chickenpox.  It was an allergic reaction to the amoxicillin SIX DAYS LATER!!!  

Just a thought.......

[HelplessHopeful]

Yes Tanns you're right. It is possible. I had allergic reactions to penicillin after years of using it without incident. Now for this child, if you did not give him any medicine, then it could be food allergies, unless it is actually chicken pox. Any high fever? Any other symptoms? I think the Benadryl is a good start, but don't expect it to remove the red spots instantly. It will take some time maybe 2, 3 or more days. But you should continue giving it to him and see the family doctor as soon as possible. Good luck..

[samsmom650]

How long did it take for the spots to go away?  My son has had them for 5 days now.  The Dr. just told us to give him something for the itching, but didn't know how long it would last.