[header] How to prevent flare ups of external hemorrhoidal tags [title] Keep your anus clean and dry. [step] You should do this following each bowel movement and right before bed. You can gently clean the area with warm water (try moistened toilet paper if you are away from home) or, if possible, allow yourself to sit in warm water for 10 minutes. 
Be gentle and use a soft towel to dry off. This will help keep the area from becoming irritated due to chafing.