Keep fingernails short. Even use mittens or socks on small children. Train yourself to avoid situations that could possibly bring on itching or use medications and lubricants preventively. Perspiration may also irritate. Carefully test sunscreen lotions on a small area of skin before applying generally.
Swimming is usually beneficial.
After swimming in a chlorinated pool, shower immediately, pat the skin dry and apply lubricants. Afterward, use a cotton robe. These are helpful in reducing itching and perhaps helping protect the skin from the action of histamine. These medications are preferably not applied in ointments on the skin, as they can cause allergic reactions. These medications are not applied directly to the skin.