ASHTON Hewitt is ready to put the concussion troubles that denied him a shot at a first Wales cap behind him after making his Dragons comeback.

The rapid winger was selected in the Wales squad for the Six Nations but had to pull out after suffering signs of concussion following a blow against the Ospreys on New Year's Day.

The 22-year-old from Newport was unable to pass the final stages of the return to play protocols for the rest of the campaign, preventing him from featuring on the summer tour to face Tonga and Samoa while Leigh Halfpenny, Liam Williams and George North were on Lions duty.

But Hewitt came back refreshed in the summer, played in the friendly encounters with Montpellier and Glasgow and then wore the 14 jersey in the Guinness PRO14 opener against Leinster.

Any lingering doubts were dispelled in the closing stages when the speedster copped a high tackle by opposite number Adam Byrne that led to a penalty try and Hewitt is looking forward to strong campaign.

"I had a frustrating year but that's in the past now, I haven't even dwelled on it and had a full pre-season under my belt," said Hewitt.

"I have gone into this season like any other and I don't think about the past now, I'm looking forward to the season.

"I was desperate to get back and I didn't want to miss out on any games, especially with the international chance coming around, but you have to be sensible in those situations and make the right decision in terms of your health rather than career.

"I made that right decision and now I feel I can get back on track and have a good season."

The comeback of Hewitt and Wales wing Hallam Amos, who also made his return against Leinster after being out since a shoulder injury suffered against Australia last autumn, is a huge boost to the Dragons.

They sorely missed their game-breaking abilities in the second half of 2016/17 and the duo should play a pivotal role in new boss Bernard Jackman's attacking plan.

That wasn't entirely evident against Leinster given the short time that the Irishman has been at the helm but Hewitt is confident they are establishing good habits.

"We went away from the game plan a little bit and at times chased it too much," said the wing. "But there were a lot of positives, the boys showed a lot of grit and work rate and with a few tweaks we will be sweet.

"You are not going to change overnight. Everything has changed about the way that we are playing and what we want to achieve.

"There has been a lot of information to take on board and there are times when you can see it coming through well. Sometimes there are hiccups but we will work on the training paddock and set them straight."

And the Dragons will hope to prosper in Edinburgh on Friday evening after an away whitewash in all competitions last season.

They haven't won on the road since beating Treviso in March, 2015 but Hewitt insists the hoodoo isn't on the agenda.

"It's been a while [since we won away] but it's been a fresh start and nobody has mentioned past records," said Hewitt.

"Hopefully we will go there with that not in our minds one bit, stick to the game plan and come away with the win."