okay so i think I have it, but I am not sure if these symptoms are typical to having scabies

so basically I am starting to get really really itchy at night, like everywhere, and when I have scratched my skin would turn red and puff up white for a while, now if pressure is applied to anywhere on my skin it turns red, i also noticed that the area under my nose is red too
I have been sneezing a TON, but even when i go days without sneezing its very inflamed
I just did a steroid cycle for allergies that i got from my doctor, stopped me from sneezing so much, but my skin is very inflamed when touched... its bad
I also have some tiny pimples on my forearms and legs, and red lesions that seemingly come from nowhere and never fade.
today i noticed that a guy i sit next to during the day everyday for hours and hours got the same thing, redness under the nose he itches really bad his skin turns red and stays red like mine
does this sound like scabies? also I notice biting too sometimes, and I only started noticing it since i entertained the idea of scabies (psychological?)

I have wondered why some people get scabies, while others are clearly exposed and do not get infected at all, or get rid of it easily. Some people on this board said they had prior episodes of scabies, and got it again years later. Several people have stated they were emotionally or physically down when they got scabies. I know I was.

How would you boost your immune system?
ONE - limit sugar intake
TWO - sleep
THREE - yogurt
FOUR - whole grains
FIVE - Echinacea
SIX - garlic (see below!)
SEVEN - other herbs mentioned
EIGHT - exercise
NINE - sleep
TEN - limit YOUR sugar intake

HOW DOES GARLIC HELP?
Garlic: Most garlic pills are labeled Odorless Garlic. These do not contain the active ingredient Allicin to boost immune system, although they can help to lower your cholesterol. Use garlic pills or powder containing allicin (or allium sativum L.), or fresh garlic.

Sleep: your body produces certain immune factors only when you are asleep!!!!