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GlossaryPerivascular Dermatitis

inflammation around blood vessels in the skin's dermis

Perivascular dermatitis is a type of skin inflammation that occurs around the blood vessels in the dermis, the layer of skin just below the surface. It can be caused by various factors, including allergic reactions, infections, or autoimmune conditions, and often presents with redness, swelling, and sometimes itching or pain.

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community My skin is always dry and flakes like chalk (25)

in Transgender 7 upvotes 2 years ago

The user underwent a biopsy two years ago and was diagnosed with keratosis pilaris, leading to hair issues. They tried treatments including Minoxidil, betamethasone, lymecycline, topical Accutane, and dutasteride, as well as diet changes, without improvement in hair thickness or skin dryness.

community scarring alopecia awareness in this community

in Chat 33 upvotes 3 years ago

Lichen Planopilaris (LPP), a form of permanent hair loss, which can be mistaken for seborrheic dermatitis and is characterized by scalp itching, burning, redness, and dandruff. Treatment options discussed include steroidal creams, finasteride, minoxidil, and RU58841.

community What is this pigmentation around my follicles?

in Chat 29 upvotes 1 year ago

The conversation discusses potential causes of pigmentation around hair follicles, suggesting sebum buildup, autoimmune conditions, or dermatitis. Treatments mentioned include finasteride, dutasteride, and an anti-inflammatory diet, with a recommendation to consult a doctor for a proper diagnosis.

community Itching scalp and dandruff when i scratch it

in Product 1 upvotes 1 year ago

The conversation is about managing an itchy, flaky scalp, possibly due to psoriasis, and the use of a hydrating conditioner to address dryness. The user is concerned about using conditioner due to experiencing telogen effluvium.

community Autoimmune issue?

in Question 2 upvotes 8 years ago

The user experienced severe hair loss, itchy scalp, and skin issues after trying no-shampoo, and wonders if it's male pattern baldness or an immune issue. They have a history of eczema, dermatitis, and jock itch, and have tried various treatments like coconut oil, peppermint, pumpkin seed, and onion.

community can someone help me identify these pls

in Treatment 4 months ago

The user is experiencing diffuse thinning and inflammation despite using 2.5mg dutasteride daily, ciclopirox, and ketoconazole shampoos. They are considering treatments like hydroxychloroquine and JAK inhibitors due to suspected scarring alopecia and have faced challenges in obtaining a scalp biopsy.

community Derm says my hair loss (diffuse) is from seborrheic dermatitis. Anyone else have experience with this? I was already prepared to jump on fin min

in Research/Science 26 upvotes 1 year ago

Seborrheic dermatitis can cause hair loss, and treatments like ketoconazole shampoo, topical steroids, and oral antifungals may help. Some consider using finasteride and minoxidil for hair loss despite dermatitis.

community Just a suggestion for those suffering with itchiness along with MPB

7 upvotes 12 years ago

A user experienced severe scalp itching with MPB and found Nizoral ineffective. A doctor diagnosed seborrheic eczema and prescribed Betacap, which relieved the itching.

community Infection from micro needling even with medicated shampoos and sanitation

in Microneedling 4 upvotes 11 months ago

The conversation discusses scalp itching and tenderness after microneedling, despite using medicated shampoos and proper sanitation. The user plans to see a dermatologist and is concerned about possible infection or allergic reaction.

community Red and ichy pimples/rash from applying topical minoxidil

in Chat 2 upvotes 2 months ago

The user experienced red pimples and a rash from using topical minoxidil, possibly due to propylene glycol. Suggestions included seeing a dermatologist, switching to foam without propylene glycol, using Nizoral, and adjusting application timing.

community Anyone used Topical Calcipotriol (cream) or VPA ( Valproic Acid)

in Chat 7 upvotes 5 years ago

The conversation discusses using topical Calcipotriol and Valproic Acid for hair loss, focusing on their mechanisms involving the VDR receptor and Wnt/beta-catenin pathway. Specific treatments mentioned are Minoxidil, Finasteride, and RU58841.

community Topical min and dermarolling with seborrheic dermatitis

in Minoxidil 3 upvotes 1 week ago

The user is managing hair loss with oral finasteride, recently switching to dutasteride, and topical minoxidil, but faces challenges due to seborrheic dermatitis. They seek advice on effective regrowth methods that don't worsen their condition, with suggestions including various shampoos like Vichy Dercos and ketoconazole.

community Correlation between topical retinoids and diffuse hair loss

in Research/Science 6 upvotes 4 years ago

Excess Vitamin A and topical retinoids can cause diffuse hair shedding. The user suspects their chronic telogen effluvium may be linked to using adapalene, a topical retinoid.

community Has anyone tried tretinoin with seb derm and had any flare-ups as a result?

in Treatment 4 upvotes 2 months ago

Tretinoin can irritate seborrheic dermatitis, but using it with a moisturizer on calm skin may help. Parallel Health's skin microbiome testing and phage therapy are suggested for persistent issues.

community COQ10 + PQQ for scalp inflammation??

in Chat 6 upvotes 1 year ago

A 32-year-old male with diffuse thinning and seborrheic dermatitis has been using finasteride for 8 months without improvement. He is considering COQ10 + PQQ supplements for scalp inflammation and hair loss.

community The MPB itch aka DHT itch is very real.

in Chat 9 upvotes 3 years ago

Hair loss itch is caused by DHT attacking follicles and stimulating nerves. Finasteride users who respond well don't experience this itch.

community Dermaneedling/Dermapen with seborrheic dermatitis/dandruff

4 upvotes 6 years ago

Using dermaneedling or dermapen for hair loss while managing seborrheic dermatitis and dandruff. Treatments mentioned include ketoconazole, peppermint and jojoba oil, and rubbing alcohol.

community Would appreciate some thoughts on the “dht itch”

in Chat 1 year ago

The user is experiencing scalp itching despite using finasteride and Ketoconazole shampoo for hair loss and seborrheic dermatitis. They are unsure if the itch is due to their treatments, diet, or mental factors.

community 21 y/o. MPB. Having an itchy/burning scalp no matter what I do or try. Any advice please? Thanks.

in Question 4 upvotes 6 years ago

A 21-year-old experiencing itchy and burning scalp with hair loss was diagnosed with MPB and scalp inflammation. They were prescribed Ketoconazole, Prednisone, Clindamycin, and Finasteride, and are considering trying antihistamines, dietary changes, and "nopoo" to alleviate symptoms.

community Topical VPA - Anyone experiences here?

in Question 2 upvotes 7 years ago

The conversation is about using topical valproic acid (VPA) for hair loss, focusing on its application method, usage frequency, and combination with other treatments like micro-needling. No specific experiences with VPA were shared.

community PG causing irritation when applying RU

in Research/Science 2 years ago

The user is experiencing irritation from using PG with RU58841 and is seeking alternative solutions like K&B in the UK. They report redness, itchiness, and flaky skin from the current treatment.

community Injured temple with derma rolling

in Microneedling 2 upvotes 1 year ago

OP injured their temple using derma rolling and tretinoin, causing peeling and potential hair follicle damage. Users suggest the injury might be permanent, possibly resulting in scar tissue where hair won't grow.

community Feeling pretty hopeless... Dry skin and eczema causing my alopecia.

in Chat 12 upvotes 2 years ago

The user has been using dutasteride, lymecycline, betamethasone, and minoxidil for hair loss but struggles with eczema and dry skin. They feel hopeless as no treatments or moisturizers have helped, and they are concerned about their appearance due to their soft facial features.

community DUPA / APHK discussion ( Diffuse unpatterned alopecia / Acquired Progressive Hair Kinkering )

in Treatment 3 upvotes 6 years ago

The user discusses their experience with diffuse unpatterned alopecia and acquired progressive hair kinkering, noting improvements with treatments including biotin, pantothenic acid, finasteride, ketoconazole, and zinc pyrithione shampoo. They report thicker, healthier hair and improved scalp condition, attributing success mainly to biotin, pantothenic acid, and finasteride.

community Betamethasone dipropionate 0.05 (sernivo spray)

in General 76 upvotes 1 year ago

A user was prescribed betamethasone dipropionate spray for a receding hairline, which caused skin peeling and depigmentation. They stopped using it and are considering alternatives like BPC-157/TB-500 for healing.

community Balding (i guess?) 22 yr old male with seborrheic dermatitis

in General 98 upvotes 11 months ago

A 22-year-old male experiencing hair thinning and loss, possibly due to seborrheic dermatitis or low vitamin D, is cautious about using minoxidil or finasteride due to heart palpitations and high blood pressure. Suggestions include using ketoconazole shampoo to control inflammation and focusing on treating the dermatitis first.

community Vellus hairs sprouting up everywhere where hair used to be... is this a positive sign?

in Is this regrowth? 6 upvotes 1 year ago

User has been using topical finasteride and minoxidil since May, previously used a spray version since January. They are seeing vellus hairs and have added weekly microneedling to their routine.

community Pelage Pharmaceuticals’ PP405 and its Impact on Follicular Regeneration to be Presented at the American Academy of Dermatology (AAD) Annual Meeting 2026

in Research/Science 122 upvotes 4 weeks ago

PP405 shows promise in regenerating hair by activating dormant follicles. Other treatments like VDPHL01 and Breezula are also advancing, providing new hope for hair loss solutions.

community Anger and frustration as I finally learn my diagnosis.

in Female 6 upvotes 2 years ago

A young female diagnosed with Lichen planopilaris (LPP) experienced years of misdiagnosis and ineffective treatments, including a hair transplant and other procedures. She is considering litigation due to the misdiagnosis and has learned that LPP is chronic, hair loss can be stopped with ongoing medication, but lost hair cannot regrow.

community Can valisone solution cause hairloss?

in Question 1 upvotes 7 years ago

A user is concerned that prolonged use of valisone (betamethasone) and clotrimazole solution for scalp dermatitis may be causing hair thinning and loss. They noticed thinning in the area where the solution was applied.