What is perspiration spot

summary

The main cause of sweat spots is superficial fungal infection, which can occur in the chest, back and face without obvious symptoms. Let's see what sweat spots are.

What is perspiration spot

First of all: pityriasis versicolor, formerly known as tinea versicolor, commonly known as sweat spots, is a superficial fungal disease caused by Malassezia infection of the cuticle. The disease is chronic, with mild inflammation, usually without conscious symptoms. The lesions are characterized by scattered or fused hypopigmentation or hyperpigmentation spots with chaff like desquamation on the chest, back, upper arm, armpit and sometimes the face.

Secondly, the pathogenic bacteria is a kind of lipophilic yeast, called Malassezia. This kind of fungi is saprophytic bacteria of normal skin. Only in some special circumstances, such as high temperature, high tide, local fat and sweat, poor sanitary conditions, etc., the parasitic density of Pityrosporum is increased, and the saprophytic yeast is transformed into mycelial type.

Finally: the initial lesion was round punctate macular around the pores, then gradually increased to the size of the nail plate, with clear edges. The adjacent parts could fuse into irregular large areas, and new macular appeared around. There are a few chaff like scales on the surface, which are easy to peel off, ranging from gray, brown to yellowish brown.

matters needing attention

Because pityriasis variegata is difficult to cure and easy to relapse, intermittent repeated use of drugs to ensure the eradication of infection. According to the condition can also be used after washing lotion in the use of drugs, which can greatly enhance the efficacy.