Sun spots or solar lentigos are light brown to tan spots that appear on the skin over time and are usually from sun exposure. The most common body areas affected are the sun exposed areas of the face, shoulders, arms, and hands. Sun spots are usually benign (not cancerous) growths. However, rarely a skin cancer could develop in one of these lesions. Concerning signs for skin cancer development would be any lesion that is symptomatic (itching, painful, ... 
Dry skin (also called xerosis) is a very common, benign condition of the skin. There can be many different causes for dry skin including internal or genetic causes and external or environmental factors. Several of the environment factors that can cause dry skin include normal aging, dry climates, or excessive exposure to water. Excess water exposure can occur during household work or different occupational exposures that may require you to immerse your... 
Acne brings much that’s unwelcome — redness, pimples, whiteheads, blackheads, self-consciousness, and frustration. For many, the struggle doesn’t end when their acne is gone. Some people see scars from their breakouts long after they’ve cleared.
Is now the right time to erase them?
If your acne scars are bothering you, yes.
We now have treatment options for acne scars including dermabrasion, laser therapy, subcision treatment, excisions, ... 