Eczematous Vesicular Rruption and Exacerbation of Chronic Spontaneous Urticaria Associated with Secukinumab
	    		
		   		
	    	
    	
    	
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Sang-Min CHOI
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Bark-Lynn LEW
			        		
			        		;
		        		
		        		
		        		
			        		Woo-Young SIM
			        		
			        		;
		        		
		        		
		        		
			        		Soon-Hyo KWON
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Dermatology, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Korea
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Case Report
 
        	
        	
            
            
            	- From:Korean Journal of Dermatology
	            		
	            		 2022;60(9):611-614
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	 The pathogenesis of chronic spontaneous urticaria (CSU) is complex. Though the involvement of functional autoantibodies and imbalance of T helper (Th) cell subsets have been reported, the exact mechanism remains elusive.We report a case of eczematous vesicular eruption and exacerbation of CSU in a patient with psoriasis after treatment with secukinumab, an anti-interleukin (IL)-17 monoclonal antibody. The eczematoid eruption subsided after the administration of systemic steroids, but the exacerbation of CSU was not controlled. After switching the therapy to guselkumab, an anti-IL-23 monoclonal antibody, to supplement the control of the psoriasis lesions, the patient’s urticaria flare-ups were well controlled with only H1 antihistamines. We hypothesize that the Th2-skewed immune response induced by anti-IL-17 treatment in predisposed patients might have resulted in the eczematous eruption and exacerbation of CSU.