Hello, It is looking like you are suffering from a common condition called furunculosis which is a bacterial infection. It normally occurs in areas where there is a lot of sweating and friction. So it is commonly seen in the underarm and groin area. Treatment for this condition is to use antibiotics both orally and in cream form. If proper antibiotics are not used, the problem can be easily treated and prevented from repeating again and again at other places as well.
Next Steps
Consult a nearby Dermatologist
Health Tips
Avoid excessive sweating. Wear loose clothing.