Ant Bite You

Yesterday Eli managed to find some ant hills at school and was bitten on his hand at least 5 times by ants. Apparently he found them and then raised his hand up crying and there were ants on his hand. The area was just red yesterday but today it also has little puss bumps - we can see 5 distinct bites. I've researched and it's normal but he's so pitiful saying "ant bite you". When I picked him up from school he had to show me exactly where the ant hills were (it happened at 8am and I picked him up at 5pm!) and now he just keeps showing me his hand and telling me that ants bit him. Not fun.......another adventure in Mommyland!