Hi! New to raising chickens. Hatched 6 from an incubator but then made the mistake of buying a couple silkies the same age from a local farmer and just found a bunch of lice under ones wings. I’m sure the others also have them bc they have been in the brooder together now for 3 days. What should I do? I’ve already cleaned everything and put some de under the wings but I know that won’t be enough and now I’m worried they will all die I should add they are all 2 weeks old