The user is experiencing scalp irritation and increased hair loss while on vacation, possibly due to hard water and sun exposure. They have stopped using a minoxidil and finasteride spray due to burning sensations and are using a prescribed betamethasone and salicylic acid solution along with ketoconazole shampoo.
The regimen includes using a diluted 5.5% Minoxidil / 0.025% Finasteride solution daily, microneedling weekly, and ketoconazole shampoo twice a week to minimize systemic exposure while maximizing scalp DHT reduction. The goal is to achieve hair regrowth with minimal side effects.
Androgenic alopecia (AGA) might have evolved to reduce prostate cancer risk by increasing UV exposure to the scalp, but this theory is debated. Treatments like minoxidil and finasteride are used for AGA, though the exact causes and evolutionary reasons for hair loss are unclear.
The user shared progress after one year of using Minoxidil, rosemary oil, and dermarolling for hair loss, noting fuller hair despite some scalpexposure. Another user inquired about the dermarolling process and frequency.