- Cough caused by an allergic reaction
The first and typical symptom of lung diseases caused by an allergic reaction is the dry cough. Does it occur for example with special feeds, distinct weather or only inside the stable, an allergic cause should be considered. This holds although, if a treatment with expectorants or antibiotics is without success, but anti-inflammatory drugs like cortisone reveal effects. The cough may at enduring allergen exposition develop to a chronic obstructive bronchitis (COB) or asthmatic afflictions like dyspnoea or a pulmonary emphysema (overexpansion of the lung, broken wind)
- Skin lesions due to allergic itching
Most obvious symptoms are skin eruptions (urticaria). The contact with the allergen can lead instantly to wheal formation on the skin. At long lasting contact it may evolve alopecia and eczema formation (inflammation of the skin with itching and swelling). Especially the sweet itch has an allergic background; some horses react allergic to the poison of biting insects like midges and mosquitoes.
- Inflammation of the eyes from allergic reaction to flies
Inflammation of the eyes
Similar to humans horses may suffer from ophthalmitis associated with redness, tear flow and itch, caused by contact with allergic substances. Spores of moulds, durst containing mite faeces or pollen from the environmental air may be the trigger.
- Head shaking caused by an allergic reaction
The reasons of permanent and forceful shaking of the head may be problems of the backbone or obscure inflammations. More than halve of the cases are related to allergic sensibilisation