Physical urticaria, pressure urticaria is well known. See a dermatologist prior and they can give you methods to reduce the chances of another episode e.g.. prophylaxis beforehand. Physical trauma is well known to produce hives, urticaria and dermographism. Dr Davin Lim
It is difficult to tell from your picture exactly what is going on. However, it is somewhat unusual to have significant burning and stinging four days after microneedling, so I recommend returning to the provider who did the treatment and letting the assess your legs and arms. In the m...
This form of acne scarring is not well described in the literature. It is more common in Asian patients, and most frequently occur on the nose. It can also present on the chin area as tiny 'pebbles'. OK, to answer your question, yes it can, but I do NOT use PRP in this situation, but a...