Hello.
You described your armpits as feeling like razor burn which could result in being allergic to a certain type of deodorant so you could try switching brands. Also putting some aloe vera on might help so you could try that.
Hope that helps.
HI,
Dry skin is common and may result from the loss of moisture from the skin. You can use a non-soap cleanser and apply an emollient liberally and often, particularly after bathing. Try to avoid using strong deodorants that may add more harm. If it persists, a stronger prescription medication from your doctor may be indicated.
Take care and keep us posted.