Toes, Dermatology FAQ

Allergies or insect bites Hello doctor, I often wake up at night due to itching, which has been ongoing for several months. At first, I thought it was mosquito bites, as the lesions are quite separated, about 1 cm in size, and are itchy. Sometimes they appear as hives, and other ...

The toe post-surgery tissue is very stiff and lacks color? Hello Doctor, I had debridement surgery on my left little toe over a month ago, where the nail bed was cleaned and surrounding tissue was sutured. The surface of the wound appears to have healed, but the flesh of the toe ...

Nail leukonychia Hello doctor, I would like to ask about the white spots on my toenails. What could this condition be? The white spots vary in size on all my toes except for my big toe and two to three small toes. They have been getting larger over the past month, and this issue ...

Are multiple skin symptoms indicative of an immune system disorder? Hello, doctor. Over the past month, I have been experiencing various health issues. Two months ago, I was bitten by mosquitoes, and the wounds have not yet healed. Two weeks ago, I developed two ring-shaped rashe...

Nail bruising leading to the complete loss of the nail? A few days after exercising, I noticed bruising under my big toenails. At first, there were only a few spots, and I didn't pay much attention to it. However, due to continued exercise, the bruising area has increased si...

There are white flakes on the soles of the feet? The soles of my feet have an unpleasant odor, and sometimes I notice small flakes around my toes that are not peeling skin but rather tiny white flakes. This issue has only occurred in the past year and a half, and the flakes are l...

Medications for nail fungus? Hello Doctor, I have been troubled by a toenail fungus issue affecting all ten of my toes for the past few years. Last year, I visited a dermatologist from June 11, 2022, to September 1, 2022, and was prescribed 100 mg of Itraconazole capsules. I took...

Issues with wound healing from insect bites? Hello: I tend to have a significant swelling and blisters when bitten by mosquitoes. Recently, the blister burst and the swelling went down, but the wound has not been healing and continues to ooze. Although it forms a scab, it starts ...

Bacterial infection of the feet can lead to odor? Hello Doctor, I visited a dermatology clinic at the end of July due to an odor coming from my feet. My feet appear completely normal, and I maintain good hygiene, including exfoliation. It is not one of the four types of athlete&#...

Cryotherapy has been effective for several years, with varying results? I have viral warts on both my fingers and toes. I've been undergoing cryotherapy for nearly two to three years, but my condition hasn't improved, so I would like to seek opinions from other doctors....

The toenail on the big toe is not growing? Hello doctor, previously the big toes on both feet did not grow, and later the nails showed a layering effect, as if two pieces were overlapping, with some tissue fluid leaking from the edges. I consulted a doctor who applied medication ...

Acute urticaria (while taking oral isotretinoin) Hello Doctor: I have a history of acne treatment for over six months, so I recently had blood tests and, after evaluation by my doctor, I started taking oral isotretinoin, along with other oral medications prescribed by my dermatol...

Questions about oral anti-inflammatory medications after cryotherapy? After undergoing cryotherapy on my toes on April 13, 2023, I experienced significant pain. I took IBUPROFEN 600mg, which I had at home, on the same day, and it greatly reduced the pain level. However, I am conc...

Swelling on the lateral side of the fingertip of the middle finger? This morning, I woke up and noticed that the left side of the tip of my middle finger on the back of my hand is swollen. It doesn't itch or hurt. The swollen area doesn't appear very red. However, there...

There is a dark line on the skin of the toe, along with an itchy scalp issue? I would like to consult a doctor about a recent issue I've been experiencing, as mentioned in the subject. I would like to know what to do. I have never had scalp problems before, but they have rec...

Inquiry for clarification? Dear Dr. Wu, I have two questions regarding skin issues that I would like to consult with you: 1. Regarding the flat dark spots on the sides of my feet: I have a flat dark spot (or dark macule) approximately 0.1 to 0.2 cm in size located about 2.5 cm ...

Mosquito bites Hello, doctor. Based on my previous experiences with insect bites, they usually heal within 2-3 days. However, last week, I was bitten by what I suspect was a mosquito while I was sleeping (I later swatted it). The mosquito was quite large, and the bite was located...

Bruised toe Approximately in mid-November, I sustained a bruise on my right foot due to work-related activities. Initially, only my right big toe was affected, but the next day, I noticed a bruise appearing on my left big toe as well. The bruise on my left foot is smaller, while ...

Insect bites? Recently, I have been experiencing a recurring condition on my foot that resembles mosquito bites (but I am certain it is not from mosquitoes). The affected area is below the knee, primarily concentrated around the ankle and the top of the foot. When one area heals,...

Sweat eczema Hello, I have been experiencing dyshidrotic eczema on my fingers and toes intermittently, and I have gotten used to it. However, a couple of days ago, it suddenly became hot, and I started scratching the area below my wrists. The next day, my hands and arms became ex...