I have a 16 week male Pug and I washed him 3 times in a week with a flea and tick shampoo while in that same week he was treated with K9 Advantix. I put on a flea collar (Scalibur) to prevent from fleas and mosquitos (Sand Fly) and that’s when he immediately began to scratch vigoriuosly with his paws and against things and floor. I thought that he was acting like that cause he was not used to the collar but the scratching continued constantly. So I removed it after an hour. His eyes went swollen too after that. 2 days after his coat began to fall in patches including the head. Skin was not redish at that time but the itching and scratching continued. Presently he is being treated with an anti-fungal medication (Fulviderm), 1/4 of a pill daily and Omega 3 tablets. But still the dog scratches and now he has like bumps/sores on his head sometimes with blood from the scratching. His coat smells bad too. Is there something I can do to relief him from the itching? Please help me. Thank you.