Armpit painful bumps / ingrown hairs
So my niece shaves, yes. Then she had this ingrown hair that caused a large bump that released a yellowish pus and was very sensitive, painful even to the slightest touch. It's been happening for a while now and I took her to the doctor's for a check, and she gave her antibiotics to get rid of it. She says she took the medicine until it kind of flattened, and stopped there because she thought that it would go away soon. Now, suddenly when I came over to check up on her, the bump was like flesh broken out of the skin, all red and very painful. Blood-like dried stains were under her armpit and two very large, reddish, firm bumps grew on the left and under the fleshy thing. Very painful, hard to close her arm and the slightest friction of her shirt against it makes her almost scream. She began her antibiotics again, though she wasn't supposed to stop in the first place and I was unable to monitor. It releases a very very foul smell and it never gotten worse like this. My car broke down and her parents are out of town. I can't take her to the doctor's. No family history of breast cancer or anything of the like. Mother smoked often, never drank. She's only 12 and had the fleshy pus bumps for 2 years, each coming and going and lasts for 2 weeks or more. However, this one lasted for about 3 weeks with no signs of it getting better at all. Here's an image, I apologize if it looks repulsive, but I'm extremely concerned about her health.