Summer skin problems!

So I’m thinking this starts out as ingrown hairs, and then it gets infected somehow and becomes a boil cyst type thing and by that time I’m not really sure what to do. I guess I could stop shaving in those areas but also I’ve never had problems with ingrown hairs on my legs before this summer it’s a little strange? I’m sorry tmi, I also have allergies to a lot of things so that might be it. What can I do to help it heal? It’s really embarrassing and I can’t wear shorts or skirts or dresses ugh!