
My girl has a specific grass pollen allergy (she has been allergy tested), and gets red, sore, itchy eczema between the toes and on her muzzle. And, you're right - wetness just makes it worse. I have eczema myself and know from my own experience that inflamed skin is very itchy indeed when it gets wet! In Bracken's case, I think it is down to the increased pollen that is around, which brings out the skin allergies, causing the skin to get inflamed, and then the wetness making the skin feel sore. We have few problems in the winter months, even though her skin may be wet a lot of the time.
With Bracken we make sure that we dry her feet (especially between the toes), and muzzle, very well indeed when she comes inside if the grass is even slightly damp, particularly in the pollen season. It is a ritual now whenever she comes back into the house from the garden or from a walk, if the ground is damp or wet, and makes a big difference.
I have found an absolute lifesaver in Fuciderm gel (for acute moist dermatitis) when she is sore between her toes. This has to be prescribed by the vet - but you may already be using it. I put it on at night, and then put on some very simple cotton twill booties, which do up with double-sided velcro, to prevent her licking and biting her paws. Not sure this will work with Harvey's head, unless he wants to wear a nice bonnet!
I give Piriton too, as many others have said. .. and bathe her in Malaseb (another lifesaver) when her skin is bad: the ten-minture wait, with the shampoo lathered up on the skin is very important here.
My vet is always reminding me that pollen stays around in the environment for a very long time, through much of the autumn, and I have found that the symptoms get worse through the year until around October/November, when they mostly go away until the following spring. We usually end up with steroid injections once a year. Last year it was in October, the year before she managed until the beginning of November, and then made her nose and muzzle so sore that it bled, and I knew we had to get the steroid injections done. I don't like to do this often, neither does my vet, but once a year doesn't seem too bad.
Sorry for the lengthy descriptions! Hope some of this may be of help.
Claire