Red eye tree frog with cloudy eyes

[FwoGiZ]

At this point, I'd be mostly concerned with those blisters on its head... I am thinking stress and possible infection have to be remedied.
Moving an animal around temporarily stresses em but 5min later, if their new habitat is proper, their stress level will go down.
Not sure what you mean by prophylaxis... prophylaxis is prevention technique against infection, diseases.. not an actual med :P Read the label more in depth and tell us what's in there maybe we can help.
Get two proper sized shoeboxes. They will be your quarantine tanks. Clean both of em with bleach solution (use a cap of bleach for a jug of water). Get some fake plastic plants (with big leaves) and clean em too. Rinse then let everything dry for 24hr. After this, put a double layer of white paper towel at the bottom of the shoebox and pour just a bit of treated or more preferably RO water just enough to damp the whole paper, you don't want accumulated water in there. Put the plant in there, sideway if needed then put the frog in there. Put the shoebox somewhere the frog will not be disturbed. Next day put a cricket or two.. make sure the frog eats em. Every two days, you swap the frog into the other box and clean that other one and let it dry. Your goal here is the have a bacteria free environment for the frog, to prevent infection and spreading. Then you want to lower the frog stress. If successful, frog will regain health. If after 4-5-6 days eyes don't get better, I'd go see a vet, you will need some ointment. If not treated, usually frogs will die from eye infection but this doesn't seem like infection to me. Just stress but hey, I'm no pro

[Voodoo15uk]

Sorry it's called propolis and is brilliant on open wounds, ulcers or even scuffs, it has antibiotic and antibacterial in it. It lets the skin breathe too and has some herbal extracts in it to reduce inflammation. Not got pack with me at present to check. This is it....
Propolis - NT Labs

I'm wondering if any of the other medications would be suitable as they are safe for all amphibians.

[LilyPad]

Oy... I typed up a huge response to this yesterday on my phone and apparently it never posted.

Along the lines of what everyone else has said, you need to get him to a vet. The white dots are normal, but the other scrapes and wounds are not. I'd think along the lines of some type of fungal or bacterial infections at this point. On the open wounds, you can dab neosporin (or something similar in the UK) WITHOUT pain reliever, until you can get to a vet. That will not help the eyes though. Crickets should not be so fatty to cause fat deposits in the eyes, so my guess would be on infection.

I do not think shoe box size containers will help de-stress a red eyed tree frog. I use 10 gallon tanks with all 4 sides covered with paper as a hospital/QT tank. Low cost and very easy to disinfect. I hang a couple of silk plants from the screen top and cover the screen 3/4 with plastic wrap to keep humidity. Moving red eyes around is very very stressful on them, they aren't a 5 min later well adjusted frog. It's not uncommon for them to go several days without eating or waking up when moved.