Children frequently develop a condition called meatal stenosis. Usually after habitually scratching the urethral opening, there is inflammation and narrowing of the urethral tip. This might explain the "reddish spot". An attempt to void urine naturally leads to pain so the child refrains from going to the loo. So it is important to avoid any further scratching and keep the hands clean. After consultation with a Urologist
, appropriate antibiotics can be initiated. If however the problem persists, an intervention might be needed.