What to do if ringworm grows behind the ear

There are many types of ringworm on the body. If it appears on the face or behind the ears, it is most likely caused by simple pityriasis. What should I do if ringworm appears behind the ears? First of all, we need to find out the specific cause, because it is more likely to be simple pityriasis. We can understand the situation of simple pityriasis and make a comprehensive judgment based on our own situation. Now let’s look at pityriasis simplex.

This disease, also known as simple pityriasis or dry pityriasis facialis, is a chronic skin disease of unknown cause, manifested by hypopigmented macules with blurred edges, and histopathology shows a decrease in melanocytes. It is more likely to occur in people with darker skin or atopic diathesis.

pathology

Histopathological findings showed subacute spongiform dermatitis with decreased melanocytes in the epidermis.

Clinical manifestations

It is common in children and young adults, and is more common in those with darker skin. Typical skin lesions are round or oval reddish spots with blurred edges, 0.5 to 2.0 cm or larger in diameter. After a few weeks, the pale red spots gradually turn into pale white spots, covered with a small amount of bran-like scales. The number of lesions varies, mainly on the face and occasionally on other parts of the body. No subjective symptoms, or there may be itching or burning sensation. The course of the disease varies in length, worsening in summer, but it can all resolve naturally.

Differential Diagnosis

It needs to be differentiated from vitiligo, tinea versicolor, psoriatic leukoplakia, sarcoidosis or mycosis fungoides.

treat

There is no specific treatment. Applying moisturizer, 5% sulfur ointment or weak corticosteroid cream can be used externally, but the effect of hormones is usually not better than moisturizer. Taking vitamin B complex orally may also be beneficial. Light therapy has little effect.

Key points for identification:

The white spots of vitiligo are more obvious in color, with clear boundaries and darker pigmentation at the boundaries. The surface of the white spots is smooth and scale-free, the hair in the white spots turns white, and there is no specific predilection site. Pityriasis alba often occurs on the face, with hypopigmentation. The white spots are darker in color than vitiligo, with unclear boundaries and are covered with a small amount of scales. It is obvious in winter and spring, and mild in summer and autumn.

In vitiligo, melanocytes disappear or decrease. Melanocytes present in pityriasis alba