[Miko]

It's good to hear that his redness is bit better , And Dont worry about the weight, he will eventually gain it back once he gets better. Hamsters start losing weight when they are not well as the body is trying the best and results in the loss of energy and nutrients. But if you think he's losing a lot then it's better to ask vet.
His eye will remain semi closed because of the pain and irritation around it ,just make sure there is no severe discharge (it if happens, he may have conjunctivitis).
This med works really slow and I know that so let's hope the best for him ! At last I'd suggest to clean and disinfect his cage and remove wooden material ,it will help preventing in any further irritations.
Get well soon Moss ♡