Frictional Dermatitis

Frictional dermatitis is a condition where frictional trauma causes dermatitis. The common cause is contact with an agent that irritates the skin or triggers allergic reactions. It is managed by avoiding irritants, applying anti-itch cream on the affected region, and taking an oral anti-itch drug.

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Will STD cause the development of a purplish rash on the penis?

Query: Hello doctor, After a night where I blacked out from drinking, I may have had sexual intercourse with a woman I do not know. Later, I got a purplish rash on the bottom ridge of my penis head as well as some dark spots on the shaft. My scrotum is red except for a flesh-colored stripe down the middle....  Read Full »

Dr. Rakesh Kumar Bahunuthula

Answer: Hello, Welcome to Although you have had a high-risk exposure, your complaints and clinical images (attachment removed to protect patient identity) do not look like a sexually transmitted disease (STD). They appear more like an intertrigo which is a fungal infection of the body folds...  Read Full »

How can I whiten my penis to look like the rest of my body?

Query: Hi doctor, I noticed a change in the color of my penis. I am always conscious about the color of my penis, and it appears darker now. I think it is due to excessive masturbation without any lubrication. The color change is less significant when erect. It is getting worse day by day. And I am devo...  Read Full »

Dr. Raveendran S. R

Answer: Hi, Welcome to I can understand your concern. I saw the pictures, and I could notice the discoloration (attachments removed to protect the patient’s identity). It is called hypopigmentation. It is seen only in your foreskin area. Kindly make sure you do not have phimosis and...  Read Full »

What are the commonly occurring lesions of the penis in childhood?

Query: Hi doctor,My son, aged 9 years, has a bump on his penis. This crusted bump developed about two months ago. It is painless, and there is no discharge of any type. It is dry, rarely itchy, and looks like a hard wax. No mass is present under the skin, and the skin is raised. He has no previous history ...  Read Full »

Dr. Shama Naaz

Answer: Hi, Welcome to Crusted lesion (of short duration) over the penis in childhood can be due to, 1. Frictional dermatitis. 2. Allergy. 3. Scabies. In some conditions where there is heaping up of dead skin, it causes this scaly lesion. I suggest the following methods to take care of it...  Read Full »

I have a skin problem behind my ear due to my specs. What to do?

Query: Hi doctor, I have a problem with my specs. There was a skin problem behind my ear where the specs rest. The injury is reddish black in color. One month ago, I had the same type of problem on my nose, the point where the specs touch my left side of the nose. Now, I am using contact lenses. After 20 ...  Read Full »

Dr. Sampada Avinash Thakare

Answer: Hi, Welcome to It is basically frictional dermatitis, which has left behind pigmentation. Do not use Fusiwal-M cream (Mometasone furoate and Fusidic acid) as there is no inflammation. It will take time for pigmentation to resolve. I suggest Kojiglo gel (Kojic acid and vitamin C) or Mel...  Read Full »

How to reduce friction scars on my penis?

Query: Hello doctor, I have taken some pictures of my penis, as I have had these red marks for years. They are like friction burns. Is there anything I can take to redness and scar?  Read Full »

Dr. Shama Naaz

Answer: Hi, Welcome to Redness over the penis is caused due to infection (bacterial/ yeast), irritation by friction, or certain topical medication. Did you get whitish discharge from the urethra, or do you have diabetes mellitus? Did you take any medication for fever or painkillers before ...  Read Full »

How to treat a painless, non-itchy red scratch above the butt area?

Query: Hello doctor, I have what looks like a red scratch or stress point starting above my butt and going down. It might be intergluteal cleft intertrigo, from the research I have done. It almost looks like a pale pink scar. It does not itch, hurt, ooze, peel, develop scabs or scales, or bother me other ...  Read Full »

Dr. Shama Naaz

Answer: Hi, Welcome to Redness over the gluteal cleft is caused by friction, sweating and may be due to intertrigo. Intertrigo is caused by bacterial or fungal infection leading to maceration of the skin.  Read Full »

Please suggest treatment for beltline rash.

Query: Hello doctor,I have a small rash on my belt line that has been there for a number of weeks. It is red, inflamed, and bumpy. It tends to itch a lot. It is not ring-shaped, more like a razor burn. I take Roaccutane, Aropax, and Valtrex. Please find the image.  Read Full »

Dr. Sampada Avinash Thakare

Answer: Hello, Welcome to I have viewed the file (attachment removed to protect patient identity). This is a common site for fungal infection and frictional dermatitis. I suggest you take tablet Levocetirizine 5 mg orally at bedtime to reduce the itching. Consult your specialist doctor, discuss...  Read Full »

I was masturbating and noticed soreness under head of penis. What is it?

Query: Hi doctor, Yesterday I was doing my thing (masturbating) and I noticed a little soreness under the head of penis. I have been going at it probably twice a day lately. I am just a little concerned that it may be herpes. But I have not been sexually active for a very long time. Also, I have had two n...  Read Full »

Dr. Shanza Ikram

Answer: Hi, Welcome to I have been through your case in detail. Well in short as you know there are two possibilities: 1. Friction erosion. 2. It could be herpes infection. Herpes 2 usually on genitalia and herpes 1 on lips. As now there is no limitation in having herpes 1 on genitalia du...  Read Full »

I got a small non-raised patch of dry irritated skin on penis head. What is it?

Query: Hello doctor, I woke up with a small nonraised patch of dry irritated skin on my penis head. The area is a little sore and also the skin is dry and peeling. I am only sexually active with my partner for two years and she is clean. I have not been with anyone else.  Read Full »

Dr. Atishay Bukharia

Answer: Hello, Welcome to Please send few more photographs taken in natural light. Revert with more information to a dermatologist online -->  Read Full »

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