Why is my skin tone darkening at 29?

It seems you are dealing with tonsillitis, a condition that is identified by the white spots in the tonsils. This often accompanies a viral or a bacterial infection that further causes manifestations like sore throat and difficulties in swallowing. The best way to relieve the symptoms is to drink a lot of fluids, get some rest, and take throat lozenges. If it still doesn't get better, it's a good idea to consult a health care provider for further help.

This could be a clue to some infection. See a dermatologist immediately for an accurate diagnosis and proper treatment. Immediate medical treatment is vital in such situations.
 

If a dog happens to cut your skin, it can be the start of an infection. The wound should be washed with soap and water to clean it thoroughly. Be alert for symptoms of an infection such as redness, swelling, warmth, or pus. If you see these signs, it is necessary to see a doctor for further assessment and treatment.

Dandruff is a COMMON scalp condition causing itching and flaking. Hair loss can be caused by GENETICS, stress, or illness. Maintaining good scalp hygiene can help reduce dandruff. Use a medicated shampoo containing SALICYLIC ACID or KETOCONAZOLE to treat dandruff. Consider seeing a dermatologist if symptoms persist. Eat a balanced diet rich in PROTEIN and VITAMINS for healthy hair..

You should think twice about using BETAMETHASONE VALERATE AND NEOMUCIN SKIN CREAM (BETNOVATE-N) for this. Although these ointments contain corticosteroids, which are known for reducing inflammation, they can exacerbate your acne in the long run because of steroid-induced rosacea or any other reason. Pores get blocked with oil, bacteria, and dead skin cells, forming pimples. To bring your skin back to normal, it would be wise to use a mild cleanser and an oil-free moisturizer. More importantly, avoid touching them at all costs.

You may have gotten bitten by an insect, which your body doesn't like at all. Sometimes, such bites can result in skin all lumpy and itchy, as you have mentioned. If your PT INR levels are high, it indicates that your blood may take a longer time to clot. You should apply some anti-itch cream on the bite and also visit the physician to do your PT INR check. They could need to adjust your medicine. 

A keloid is when the skin grows too much after an injury has healed. They may feel itchy or painful. You could use silicone sheets or gel over the wound to stop it from growing back. Additionally, ask your physician about corticosteroid injections which can help flatten the keloid. 

If you have a painless lump in your armpit that doesn’t go away for about a year, it should be checked out. It might just be a harmless cyst, a swollen lymph node, or a kind of fat called lipoma. But we also need to make sure nothing more serious is going on. My advice is to see a healthcare provider who can take a look at it.