My left armpit smells even after i shower and out on deodorant but my right one beverages does and it is always itchy do you know what will help?

?rash: Is there a rash with the itching? If so there could be a yeast infection which would require treatment with an anti-yeast cream or ointment(such as lotrimin). Lotrisone (clotrimazole and betamethasone) is a prescription preparation which has a steroid mixed with it and gives relief of the itching as well. See your physician if symptoms persist.