“…Contact dermatitis and urticaria, either as a result of systemic sensitisation or repeated dermal exposure can also occur, for example, following the ingestion of contaminated foods or due to occupational exposure to penicillin present as residues in milk or to penicillin itself (Erskine, 1958;Vickers et al, 1958;Kautz, 1959;Zimmerman, 1959;Borrie & Barrett, 1961;Vickers, 1964;Stewart, 1967a,b;Reisman & Arbesman, 1968;Minkin & Lynch, 1969;Wicher et al, 1969;Mauranges, 1972;Olson & Sanders, 1975;Cany, 1977;Girard, 1978;Lindemayr et al, 1981;Falk et al, 1985;Rudski & Rebandel, 1985;Pigatto et al, 1986;Woodward, 1991;Lisi et al, 1997). There has been a report of a patient who experienced an anaphylactic reaction after a steak dinner.…”