What is this? Help please!!

please help

how did it happen?
if after masturbation, then its a friction burn

small red dots, eventually turned into this rash. ive put canesten on it and it goes down somedays but other times it flares back up.

Were you sexually active immediately prior to this showing up?
How long has it looked like this, or first time it looked like this?
I would describe this as a severe skin reaction - it is most likely you will need to get medical help to sort this - contact your own doctor. there are also STI / Sexual Health / GUM Clinics you could go to …