itching in your PRIVATE part can be caused by many things. one reason could be a YEAST infection.. other causes could be a BACTERIAL infection, an STD, or skin irritation.. if you experience discharge, pain, or a foul smell, it is important to see a DOCTOR.. They can give you a proper diagnosis and treatment plan.. to prevent itching in the future, avoid harsh SOAPS and scented products, wear loose clothing, and practice good HYGIENE..

It seems like you’ve got post-inflammatory hyperpigmentation after popping your zits. These can result in dark marks on your face. To fade them away, consider trying out products that contain vitamin C, niacinamide, or kojic acid as ingredients. Sun protection is key since UV rays can worsen the appearance of these spots. Also, remember not to irritate your skin further to avoid more dark spots.

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.
 

It is safe to use a friend's derma roller after disinfection if it has been sprayed with alcohol. HIV is a sexual infection; sharing needles is one of the transmitter. A sterilized roller is thus no cause of fear or stress if someone else has got HIV. Such sterilized tools do not risk transmitting HIV.

The skin’s pores can often get clogged by bacteria or hormonal changes. If a pimple is bothering you, try an acne spot treatment with benzoyl peroxide or salicylic acid to reduce inflammation and clear the pores. Remember to cleanse your face twice a day with a gentle cleanser, and avoid picking at the pimple to prevent scarring.

I can see that scratching you due to a street dog can be a worrying issue for you. From your information, the scratch is not too deep, which may mean there is a low chance of infection. Watch out for any redness, swelling, or warmth around the area. First of all, wash the scratch using soap and water and then apply the antiseptic cream to the area to avoid any further infection. Watch the scratch for a few days, and if you spot any of the infection signs that are getting worse, like more pain, redness, or pus formation, it is better to go to a doctor. 

When the whole body has an allergic reaction, you may notice symptoms like redness, itching, and sometimes small bumps or blisters. Common causes include foods, plants, or even the material of your clothes. Identify and avoid the trigger. Antihistamines can help calm the symptoms.