Some people have a high acidity in their perspiration. Also underarm deodorants can cause irritation. The best thing to on your underarms is Baking Soda! You can put it in an empty Baby Powder Container or even a salt shaker and shake enough on the palm of your hand and rub both hands together gently and pat onto your underarms. Be sure to wear cotton shirts or blouses and stay away from synthetics or wools.
Dry skin
Itchy underarms and pus sounds like an infection. It would be wise to seek the help of a physician. You may need antibiotics.
Research Psoriasis
Your palms and underarms may be itchy because it is hot and your sweat is irritating your skin. It could also be from an allergic reaction.
rash
If you have a pet, it could be flea bites or something else I am not familiar with.
an itchy rash
i have swollen itchy Virginia but mainly around my opening this causes discomfort and the only thing that helps is cream but it doesnt sove the problem
My wife breaks out in a visible itchy rash starting on hands and feet ,when she wears her dentures
of your crack
Scabies is an infection of the skin which causes an itchy rash. Scavies are a type of parasite that feed off your blood from the inside of the skin
7 circular non itchy rash under my breast area had it for over 6 weeks what could it be?
Itchiness in the skin can be have one of many reasons. Considering that the groin and underarm area are often dark and damp, the most likely reason would be certain species of fungi.