Sử dụng dụng cụ làm sạch. Chải lông thường xuyên. Chỉ tắm cho ngựa khi cần thiết. Dội sạch lông sau khi tắm.

Given the above summary, write a detailed text in English for it.
Before washing your horse, soak all brushes (including mane and tail brushes and combs) in warm water with a small amount of dishwashing detergent. Rinse well and let dry in the sun. Salt from sweat may dull the coat's color and irritate skin if the horse is not groomed properly. Brushing your horse removes dry skin and dead hairs while distributing oils throughout the coat. Use some elbow grease. Nothing replaces hard work. When you consistently care for your horse and tend to regular care, it shows. Frequent soapy baths can leave the coat dry and dull and strip the natural oils. While there's no "rule" to bathing frequency, know that a rinse can be useful for washing off sweat or dirt. Consider a bath before a show or if your horse is covered in mud. Monitor dandruff as one way to gauge an appropriate bathing schedule. Dandruff can be an indicator that you are bathing your horse either too frequently or not frequently enough. Without frequent and thorough bathing, horses commonly develop dandruff buildup. Excessive bathing can strip the natural oils of the coat and also lead to dandruff. When bathing your horse, rinse as many times as necessary until no soap runs off, as soap residue can lead to a dull coat. Any residue can affect the horse's skin or damage the naturally occurring oils.