HIV does not spre­ad easily from dried blood. The virus die­s quickly outside the body. A small cut touching dried blood is ve­ry unlikely to cause infection. Unbroke­n skin protects against HIV entering the­ body. Being cautious with blood is wise. Howeve­r, in this case, the chance of ge­tting HIV is extremely low. It's still good to watch for any unusual symptoms. But you probably have­ nothing to worry about!

Jellyfish stings are common and can leave scars, swelling, and itching even after the pain subsides. Applying antihistamine creams can help with itching and oral antihistamines are recommended for swelling. If symptoms persist, a local methylprednisolone injection may be considered. It's best to avoid swimming and running until the scars heal to prevent further irritation.

Some of the beneficial treatments for undereye dark circles and fine lines include laser treatments, chemical peels, microneedling, PRP etc. Please visit a dermatologist. Based on your medical condition and other factors, the doctor will suggest the best treatment for you. 

Darker skin and dark spots can occur from excessive sun exposure, hormonal changes, or skin inflammation. This issue can be solved by the application of skin whitening and brightening treatments which contain substances such as vitamin C, niacinamide, or kojic acid. Also, think about treatments like chemical peels or laser therapy to aid in the removal of dark spots. To ensure your skin's safety, always wear sunscreen to shield it from the sun and other harmful rays.

In most cases, these lymph nodes are connected with the infections of the rectal region such as perianal abscess or a hemorrhoid. Symptoms comprise inflammation, aches, painful tingling, and pus if the glandular development becomes infected recently. The most essential actions are hygiene and heat compress usage. Likewise, examining these lumps would help to understand the situation, so if there is no improvement or worsening of this disease, you are advised to hurry to the medical center.

Premature gray hair occurs when your hair loses its natural color earlier than expected, often before the age of 30. You may notice gray hair becoming more common or see more gray strands than usual. The main cause is usually genetics, but factors like stress, poor diet, and certain medical conditions can also contribute. Maintaining a balanced diet, managing stress, and using hair products with vitamins can help support hair health and slow the graying process.

You are having alopecia areata a disease that causes bald spots on the beard. The situation is not life-threatening but it can be quite annoying. In this case, a topical steroid ointment application that diminishes the inflammation in those areas will be helpful. Furthermore, the use of biotin supplements is likely to help hair regrowth as well. 

It seems to be a fungal infection in your left armpit. I suggest you see a dermatologist to look into the rash, and get a medication accordingly. Deodorant should also be avoided as it might make the situation worse.
 

The transparent liquid you see coming out is likely pus, a sign of infection. Try cleaning the wound daily with mild soap and warm water, then apply an antibiotic ointment. Keep it covered with a bandage to protect it. If it doesn't improve in a couple of days or if you notice increasing redness, swelling, or warmth around the wound, it's best to seek medical help. 

Erythrasma is an underarm infe­ction. Red or brown patches appear on the­ skin. The skin might feel itchy or uncomfortable­. A certain bacteria causes the­ infection. It thrives in warm, moist areas like­ the armpits. To treat Erythrasma, kee­p the affected are­a dry. Use antibiotic creams as directe­d. Practice good hygiene by bathing re­gularly. These steps can he­lp clear up the infection quickly and e­ffectively.