My son has been advised to give up sports because whenever he perspires the folds of his limps itches. On a regular day his elbows and knees are dry and scaly, in the middle of the night while asleep he would scratch. He has used Physogel, cetalid, QV, Rosken, they all don t help. They mostly give him a sticky feeling and is especially uncomfortable as soon as he goes outdoor or perspires a little in this tropical weather.