My husband's shirt underarms have gone stiff from using a certain brand of deodorant. How can I fix this and make them soft again?
Thanks

Nothing very much you can try. I would suggest though, a soak in epsom salts and then a good scrubbing with old fashioned bar laundry soap (sunshine or the like). If that doesn't do it, then, of course you have already thought of this, tell him to change the deodorant.