Allergic response reduce the severity of the allergic response. Often these treatments include an antihistamine oral pill, nasal spray, or eye drops. Other treatments include an allergy shot, which keep the allergic response to a minimum. For more severe reactions an epinephrine injection is carried around. This injection will be taken if the person is going into anaphylactic shock. The best treatment is avoidance of each allergen. 1) Allergies (2011) reviewed by A.D.A.M. A.D.A.M medical encyclopedia 2) Allergies.(2009) reviewed by Geimeier W J. Teen Health 3) Sicherer S, Sampson HA. Journal of Allergy and Clinical Immunology 2010 Feb 125 (2 suppl2) S116-25.
Allergic contact dermatitis the eyelids, say from use of makeup, touching the contact allergen with the fingers can trigger an allergic reaction on the eyelids. This is due to local skin memory T-cells, which remain in the original sensitization site. In a similar fashion, cytotoxic T lymphocytes patrol an area of skin and play an important role in controlling both the reactivation of viruses (such as the "cold sore" virus) and in limiting its replication when reactivated. Memory response, or "Retest Reactivity", usually takes 2 to 3 days after coming in contact with the allergen, and can persist for 2 to 4 weeks.