I looked at your other posts, to see if there was more information on their sneezing. I saw that you had lost one of your chicks to a cat. No wonder you are more anxious! I would be, too. I'm sorry you and your little girl had to go through that. Most people are anxious about their chicks at first, even if nothing bad has happened. They're so tiny! Reading up on chicken care can definitely cause a case of information overload, too. I think a lot of people get that, too.
Have your chicks been sneezing a lot? Or is it just an occasional thing? Do you see any discharge? Do they seem to feel alright or act like they don't feel well? What I'm wondering, is if one of the chicks just got some dust up it's nose one day or if they actually do have some type of infection.
Unless chicks are sick or arrived in bad condition, they basically need a warm brooder, chick feed and water. Worming is something you shouldn't need to worry about until they are adults, not when they are chicks.
To keep chicks cleaner in the brooder, you can sprinkle a light layer of clean wood shavings over any messier areas as needed, between cleanings. I find that helps a lot. At one month, your chicks must be getting big. Are they still in the brooder or have they moved to their coop? I think they're a lot less work once they are outside in the coop.
