Why is my entire body suddenly so itchy?

To understand the severity physical diagnosis is important. Based on that I can recommend treatments like medication, laser treatments or chemical peels etc.

You are experiencing seborrheic dermatitis. The condition can be whiteheads, itching, and the loss of eyebrow hair that can particularly be felt on the skin. Skin can develop open pores. It is a result of an overgrowth of yeast on the skin. With the assistance of mild cleansers that don't have any scent at all and dandruff shampoos, they can get rid of the issues of the poor comfort that they have with treatment.

You might be dealing with a common issue called acne. The back can easily get acne due to things like friction from clothes, sweating, or clogged hair follicles. To treat these spots, keep the area clean and dry, wear loose clothing, and use over-the-counter acne treatments with benzoyl peroxide or salicylic acid.

Looks like your daughter has a skin irritation that is contact dermatitis. One common type is contact dermatitis, which is caused by something rubbing against the skin and triggering redness, itching, and swelling. This thing might be her bra strap or shirt, which is the cause of the rash on her skin when it rubs against it while she is playing basketball, To make her feel better, try to use a soothing lotion or cream and let her put on clothes that are not tight enough to prevent rubbing as much as possible.

You have some large, bumpy areas on your face. Those are known as zits or pimples. Zits occur when the tiny holes in our skin, called pores, become clogged with oil and dead skin cells. This can make them look red and swollen or feel tender to the touch. A good way to get rid of acne is to wash your face gently with warm water and soap twice a day; never squeeze the spots because it can cause scars, or use products containing benzoyl peroxide or salicylic acid which help clear up blackheads and whiteheads.

Allergic dermatitis can lead to redness, itching, and swelling in the affected area It is necessary to find out which allergen is causing the reaction and avoid it. I suggest you to see a dermatologist for proper diagnosis and treatment.
 

Genital warts are caused by a virus known as HPV. It is impossible to be infected with HPV through the sharing of clothes, towels, or objects of personal hygiene. The most common way for HPV to spread is through skin-to-skin contact, usually during sexual activity. The general symptoms of genital warts are the presence of small, flesh-colored bumps in the genital area. In case you happen to be concerned about HPV then the best thing to do is to talk to a healthcare provider about preventing and treating it.

Some­times, accidentally biting the toungue or eating hard foods cause­s bruising. These bruises usually he­al within one or two weeks by the­mselves. To ease­ any pain or discomfort, try soft foods and avoid spicy or acidic ones until healing occurs. If it persists, visiting a doctor may provide help.