I thing what you might have is, Acanthosis Nigricans, it's a skin pigmant disorder, that usually occures in obese people, I have acanthosis nigricans, under my arms, on my inner thies, on my elbows and knees, and behind me knees, and on my arm where my elbow bends.
Dear Angie: I want to hire a reputable air duct cleaning company. Dear Barbara: Weâve seen a lot of reports from Angieâs List members in which they were quoted prices anywhere from $49 to more than $1,000 for the cost of air duct cleaning.
1 In a 2,000 square foot home with existing ductwork, central air conditioning costs $3,000 to $5,000 installed. 2  If ductwork is additionally required, costs could reach $6,000 to $10,000 or more. 3  Mini-split central air conditioner prices average $1,500 to $3,000 installed.