Mild or Delayed Allergic Reactions
Mild or delayed allergic reactions present as a less severe reaction to allergens than anaphylaxis. They can occur as a reaction to such things as oral antibiotics, latex and (cold cure) acrylics. The signs and symptoms are classified as skin allergies: urticaria (itching), angioedema and, respiratory allergies: rhinitis, laryngeal edema, and bronchospasm.12
Treatment consists of:
Discontinuing the source of the allergy.
Administration of oral diphenhydramine at a dosage of 1 mg/kg every six hours for children or 25-50 mg for adults every 6 hours for 24 to 48 hours. Diphenhydramine is available in an oral form 12.5 mg/5 ml (Figure 11) and 1 ml ampules or Min-i-jet (50mg/ml) (Figure 12).
Figure 11. Diphenhydramine for oral use
Figure 12. Diphenhydramine for parenteral use