When my son was less than 9months, I used Ezerra and it went well until it gets hard to cure.

After that, I switched to adult one like Tolnaftate + Hydrocortisone and works like charm. Apply a tiny layer before going to sleep and by next morning all gone. I'm not recommending them but it depends on your own situation. I would rather see him actively playing than scratching. Sometimes scratch until bleed.