When you develop irritating bumps in your underarm area, it is most likely the result of razor burn--irritation that occurs as a result of shaving. Certain skin care products can also cause bumps to occur in the armpits. In most cases, treating the area at home can get rid of the underarm bumps. However, if you feel large bumps under the armpits, speak to your doctor to rule out any medical conditions.
Allow the underarm hair to grow out naturally. Since the bumps are usually caused by hair caught in the follicles, not shaving the area can allow for it to grow back out naturally. When you do shave again, wait for the hair to grow out at least ¼ of an inch.
Reduce redness and inflammation through the use of ice. Apply an ice pack wrapped in a wash cloth to the area for 5 to 10 minutes to sooth the underarms.
Apply a lotion with glycolic acid as an active ingredient. According to the Discovery Health website, a topical solution with glycolic acid can get rid of razor bumps in all areas of the body, including the armpits. Use the lotion twice a day for 6 to 8 weeks for optimal results.
Use deodorant to freshen the armpits. According to the Medline Plus website, certain ingredients in antiperspirants can cause bumps to appear in the underarm area.
Adjust the way that you shave. Only shave during a warm shower to allow for the steam to open up the pores on the armpits. Shave in the direction of the natural hair growth. Use a new razor and shave after applying an aloe-based shaving gel. Avoid shaving creams that contain irritating chemicals and fragrances. An electric razor is preferred since it does not give you as close as a shave as a manual version.