Gnats are a pain in the but alright..
try this stuff... it really works...
Amazon.co.uk: Repel 100 Deet Insect Repellent - 120ml £1 P&P: Kitchen & Home
anything with Deet in is a good repellent x
also... if you eat plenty of garlic, that helps too... well you may find garlic helps keep everything and everyone away
good luck xxx
ps...
stop scratching...
