Lymph nodes removed-any recommendations for gentle deodorant

Had lymph nodes removed 5 years ago. Have not perspired really since, not really needed antiperspirant which is good as skin reacts and becomes sore. 
 

Recently have noticed that although still not perspiring i have become very smelly under my arm despite shower everyday / clean clothes. 
 

Any recommendations for deodorant that will be gentle on the skin but good enough to deal with whatever is going on. 
 

thanks in anticipation 

 

K