Oscar goes outside daily. He is out a significant amount of the time at the moment cos it's so warm. He does catch things, we take it off him when we spot him with something, but obviously we can't see him 24/7. He had a worming tablet at the vet about 3 weeks ago, she said to go back in 2-3 months. Is that regular enough? She said we could buy the tablets and administer them ourselves but we're going to take him to the vet for his worming instead because he has a muffled heart beat which we'd like to keep monitored.