Taking muco skin biopsies.
Skin biopsy
A skin biopsy is when your dermatologist removes a piece of skin and sends it to a pathology laboratory where a histopathologist looks at it under the microscope.
Why do you need to have a skin biopsy?
Skin biopsies are performed to help with the diagnosis of your skin condition. Sometimes, different skin conditions can look similar to the naked eye so additional information is required. This is obtained by looking at the structure of the skin under the microscope after the cells have been stained with special coloured dyes.
There are two situations in which this usually occurs:
To distinguish between different types of rashes or skin lesions. Your dermatologist maybe considering a number of possible diagnoses, and the skin biopsy provides additional information in this process.
The dermatologist suspects you have a skin cancer. A biopsy is taken to confirm that the skin cancer is present or not. The biopsy may also give information on the type of skin cancer, which may determine the best treatment.

Skin tags
Skin tags are very common soft harmless lesions that appear to hang off the skin. They are also described as:
Acrochordons
Papillomas
Fibroepithelial polyps
Soft fibromas
Pedunculated (this means they are on a stalk)
Filiform (this means they are thread-like)
Skin tags develop in both men and women as they grow older. They are skin colored or darker and range in size from 1mm to 5cm. They are most often found in the skin folds (neck, armpits, groin). They tend to be more numerous in obese persons and in those with type 2 diabetes mellitus.
Cryotherapy

Cryotherapy refers to a treatment in which surface skin lesions are frozen.
Cryotherapy stings and may be painful, at the time and for a variable period afterwards. There may be immediate swelling and redness. This may be reduced by applying a topical steroid on a single occasion straight after freezing. Aspirin orally may also reduce the inflammation and discomfort.
Nail Surgery.

nail surgery, is a minor surgical procedure to remove whole or part of a nail plate. The foot is cleansed with an antiseptic and local anaesthetic is usually given by means of two injections to the affected toe. The anaesthetic lasts a couple of hours and will totally block all pain sensation during the operation.
Abnormalities of the nail plate surface
Nail plate abnormalities are often due to inflammatory conditions affecting the matrix or nail bed. Specific diagnoses may be made from characteristic appearances.