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