Some skin types are more likely than others to have some kind of reaction to soaps and creams. Unfortunately I fall in the 'very likely to have a reaction' camp
Soaps I've had problems with include:
Haslinger Schafmilch, Haslinger Ringelblumen, La Toya stick, Martin De Candre original, Martin De Candre Unscented, Mitchell's Wool Fat, Palmolive stick, Saponificio Varesino Felce Aromatica, Tabac, T&H Ultimate Comfort, TOBS Jermyn Street, Vitos Extra (Red)
and to a lesser extent, but still somewhat problematic:
Klar Kabinett, Le Pere Lucien, L'Occitane Cade, LEA stick, Monsavon Bol à Raser, Palmolive Classic cream, Speick stick, Wickham Southsea Spray Super Smooth