Since a few weeks Toa now and then has a rash on his tummy. Mostly it's gone after a day. It started when I accidently ordered the wrong catlitter (same brand as usual only bigger litter). Of course I bought new bags and changed the litter. But since that day the rash comes and goes. This weekend it became really bad so off to the vet we are. Probably an allergy. Thinking it can be the sun/warmth (hot days here) or a plant in the garden... He isn't scratching so don't think it's itching. He doesn't seem to be bothered by it in any other way. But it looks painful to me I let you know what the vet says!