Melasma is a skin condition that can be managed and treated, it may not be completely curable or permanently eradicated.

There are numerous reasons for pigmentation on the face, such as sun damage, hormonal changes or trauma. It is treatable if diagnosed by a dermatologist correctly. I recommend that you see a dermatologist who deals with hyperpigmentation. They can advise you on the best treatment option, whether it is topical creams, chemical peels or lasers, based on the severity of your condition.
 

Several factors can cause black lumps. It's sometimes a self-resolving harmless blood blister that happens when you accidentally bite your lip or something more serious like skin cancer. Anyway, always be alert to the piece of the lump being uncomfortable, bloody, or growing in size. It's better to seek counseling from a physician to be cautious.

Herpes simplex is a virus that causes cold sores on your lips. These cold sores can feel painful, itchy, or tingly. Don’t touch or pick at them. You can use a cold compress and over-the-counter creams to help soothe them. Eating healthy and getting plenty of rest will help your body fight the virus better.

As per your symptoms it would appear that you are suffering from acne vulgaris. This condition may also lead to pimples, acne and dryness on the face. This may also be associated with the dandruff and hair fall. I suggest that you consult a dermatologist who will offer the right diagnosis and treatment protocol.

Popped pimple­s can leave scars. These­ scars can make you feel unhappy. Pimple­ scars show up when popped or picked. To he­lp with these scars, try using creams or oils with ingre­dients that fade scars. Howeve­r, remember it might take­ time for scars to disappear complete­ly. 

Bliste­rs and dark burnt-like skin on ankles may indicate chronic e­czema. Itching, redness, and thicke­ned skin occur. It lasts over a year. Cause­s include genetics, skin dryne­ss, or irritants. Helpful steps: moisturize, ste­er clear of harsh soaps, and ke­ep skin dry and clean.