Lice treatment is repeated after 10 days and mite treatment after 7 days to get the eggs. Treatment is fairly time consuming, and after treatment, any bedding in the coop or nest boxes should be replaced. Bedding such as hay or straw can harbor mites inside the strands, and sometimes is a way of...
There is no need to treat for lice or mites, unless you see evidence of them on the chickens. The poultry dust containing permethrin or a permethrin spray is my choice of a treatment if you find any parasites. DE can be dangerous if inhaled. Here are some links with pictures to look at about...
The ingredient pramoxine is pramocaine, so I would not use it. Other things than can be used for feather-picking are Nustock cream, a pine oil and sulfur cream that hides red skin and heals, Blu-Kote which colors wounds blue and contains alcohol and the anti-fungal gentian violet, Vicks, Bag...