Flea bites, Dermatology FAQ

The skin at the site of flea bites is dry and cracked? Hello, Doctor: I have a cat at home, and every April, we encounter flea problems. After being bitten by fleas, I develop a swollen bump about the size of a thumb, with a white ring around it, and it itches intensely. The swel...

Flea bite blister Hello, two weeks ago I was bitten by fleas and I went to see a dermatologist at that time. I was prescribed a tube of Calamine lotion, which has been helpful. I have a bite on the sole of my foot that has gradually turned into a large blister (somewhat transluce...

Flea bites Recently, there have been a lot of fleas in my home, and I've been bitten on many parts of my feet. While scratching, I suddenly noticed that there is a lack of sensation near the bite wounds. I'm not sure what this means. Is this serious, or will it just get...

Flea bites & Syphilis Hello Doctor: I would like to ask if a syphilis infection can cause a rash that is systemic? Around the end of June, I wore shorts and went outdoors, and afterward, I developed rashes on my calves and arms, with the left calf being more severe. The rashe...

The wrist is red, swollen, and painful after being bitten by a flea? If you were bitten by fleas on your wrist and the bite marks are arranged in a triangular pattern, and now they have become red and swollen after starting to itch, applying ointment provided temporary relief but...

Red spots keep accumulating and do not disappear? Hello, doctor. I have been troubled by red spots for several years. I previously visited a dermatologist who said I was bitten by fleas and advised me to apply medication. I have been using the medication for a long time, but it h...

Flea bites causing blisters? Hello Doctor: Recently, I was bitten by fleas after animals entered my home, resulting in blisters. However, the skin around the blisters has little sensation; even when I pinch it hard, I don't feel much. Could you please explain why this is hap...

Facial eczema I previously had a similar issue, initially thinking it was just flea bites and only applying an anti-itch ointment. Later, I visited a dermatologist and found out it was eczema. The doctor prescribed Betaderm ointment with a cooling formula. At that time, the eczem...

I have consulted multiple dermatologists, but the red spots have not disappeared? Hello, doctor. I have multiple small red spots on my body, some of which are expanding and appear as red circles. This condition has persisted for several years, and I have consulted multiple dermat...

Flea bite? If you have been bitten by fleas and the area has healed but shows hyperpigmentation, can you use a body lotion with kojic acid? Or are there other better options for reducing pigmentation?

Sudden abdominal rash? A few days ago, while cleaning my house, I suddenly discovered several bumps on my abdomen that were red, swollen, and painful, with pus in the center. Initially, I thought they were flea bites. A few days later, I noticed small red bumps that were slightly...

Dyshidrotic eczema / Suspected insect bites on the body? I have been experiencing a lot of sweat blisters on my hands these past two days, which are both itchy and painful. Someone suggested using Betaderm, is this effective? Additionally, on the same day that the sweat blisters ...

Baby bitten by fleas? Hello Dr. Wu, my baby is 11 months old and recently has developed red, round spots on his face and body that are symmetrical. I suspect they might be flea bites, as there are raised red spots on his hands and face, but not on his body, which also appear symm...

Unsure if it's a mosquito bite or a flea bite? Yesterday, I attended a class in the physics and chemistry laboratory at school, but since it is on the first floor, there were a lot of mosquitoes (so many that the teacher set up several mosquito traps). However, it was the fi...

Multiple clustered vesicles on the extremities? Hello Doctor, The patient is a 33-year-old female with an average build (163 cm, 50 kg) and generally fair health. In mid-June, she noticed a red, small, raised lesion covering half of her buttock. At the end of June, she sought h...

Rash on the body? Hello, Doctor. Since last Sunday (April 24), I have developed many small red bumps on my limbs, especially on my right arm. There are about 10 bumps on my right arm (as of April 27), and around 5 bumps on my left arm, legs, and other areas combined. Initially, I...

Sudden appearance of small red bumps on the skin? Hello Dr. Huang: In the past few days, I have noticed some small red spots appearing on my skin (on my chest, arms, palms, and calves) for no apparent reason. They are slightly raised, light red spots with a diameter of about 0.1 ...

Unusual redness and swelling on the abdomen? Hello Doctor, about three to four days ago, I noticed some unexplained redness and swelling on my abdomen. It looks similar to the marks left by flea bites or mosquito bites, with about six or seven spots clustered together. However, t...

Flea bites If bitten by fleas, are there any topical medications that can be applied? If no treatment is applied, how long does it typically take to heal? If fleas are accidentally brought into the home from another location, how should one handle the situation to eliminate them ...

The skin on the face has become so dry that it resembles a statue's face? Hello! I have dry skin, especially on my nose, which used to be so dry that it would peel. Now it has turned into blackheads. After washing my face, I can only remove a little bit of the blackheads. Wi...