Papular urticaria
Papular urticaria is a common disorder manifested by recurrent papules caused by a hypersensitivity reaction to the bites of mosquitoes, fleas, bedbugs.

Treatment ― OTC Drugs
#OTC antihistamine
      References Acute and Chronic Urticaria: Evaluation and Treatment 28671445
      Urticaria commonly presents with intensely itchy raised welts. It is sometimes accompanied by swelling of the underlying tissues. Treatment primarily involves avoiding triggers, if known. First-line medication includes newer antihistamines, which can be adjusted to higher doses if needed. Other medications like older antihistamines, H2 blockers, leukotriene receptor antagonists, stronger antihistamines, and short courses of corticosteroids can be added as extra support. In cases where urticaria persists despite these measures, patients might be referred to specialists for additional therapies such as omalizumab or cyclosporine.
       Urticaria and Angioedema: an Update on Classification and Pathogenesis 28748365
      This review outlines the latest guidelines for treating urticaria and offers new understandings of its causes.
       Chronic Urticaria 32310370 
      Second-generation H1-antihistamines (e.g., cetirizine, loratadine, fexofenadine), Omalizumab, Ciclosporin, and short courses only of systemic corticosteroids