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    GlossaryAllergic Reactions (Allergy)

    immune system overreacts to harmless substances, causing symptoms

    An allergic reaction, also known as a hypersensitivity reaction, occurs when the immune system mistakenly identifies a harmless substance (allergen) as a threat and overreacts to it. This can lead to symptoms ranging from mild, such as itching and sneezing, to severe, such as anaphylaxis, which can be life-threatening. Common allergens include pollen, pet dander, certain foods, and insect stings.

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      community 1% cetirizine (available in allergy medicines) for androgenetic alopecia

       53 upvotes 4 years ago
      The conversation discusses using 1% cetirizine, an antihistamine, as a potential treatment for androgenetic alopecia (hair loss). One user plans to try cetirizine instead of finasteride, while others are curious or skeptical about its effectiveness, discussing the role of inflammation in hair loss.

      community 11mth daily 0.5mg oral finasteride

      in Finasteride/Dutasteride  830 upvotes 1 month ago
      The user experienced significant hair regrowth with 0.5mg oral finasteride daily, despite a minoxidil allergy, and reported no side effects. They also used a keto shampoo and were satisfied with the results.

      community Chest discomfort on finasteride?

      in Finasteride  72 upvotes 3 months ago
      A user experienced chest discomfort after taking finasteride for hair loss and is concerned about whether it is a side effect or an allergy. They are advised to consult a doctor and consider other hair loss treatments if necessary.