u can try following remedial things.
-applying moisturizers on the skin before and/or after a bath,
-change ur soap, it might be the cause. use milder soap.
-drying the body properly immediately after a bath or shower,
-bathing with cold
or luke-warm water, instead of hot water (the hotter the water, the more your skin loses its natural moisture).
-delaying bathing until you stop sweating. The sweat pores are open during sweating, so if you're sweating when you start bathing, water and soap seep into the sweat pores and make the itching worse thereafter.
-Dont over-scrubbing ur body during bathing, e.g. not using a sponge,
-take antihistaminics medications
follow above mentioned things, ur symptoms may improve..take care...bye..