Pls help! i got itchy red spots overnight on my forearm only...any ideas?!

Pls help! i got itchy red spots overnight on my forearm only...any ideas?

These spots are intensely itchy and it has itched the whole day-still hasn't disappeared yet! I put some japanese cream called Mopiko--it's good also for mosquito bites--and it has provided some relief..one thing, climate has been changing from cool to hot and back to cool.. could it be the sudden change in temperature? could these spots be cause of heat?

1 week ago
thanks for answering..no i do not wear any jewellery ...gosh i will see doc if this persists max 1 week...

could be anything. heat rash,bedbugs,fleas.it also may be a allergic reaction.keep an eye on it.if it get worse and starts itching everywhere go to the emergency room and they can give you a shot of benydril or something. good luck!!