Question: Do Allergy Shots Make You Feel Sick?

What are the side effects of allergy shots?

You may develop sneezing, nasal congestion or hives.

More-severe reactions may include throat swelling, wheezing or chest tightness.

Anaphylaxis is a rare life-threatening reaction to allergy shots.

It can cause low blood pressure and trouble breathing..

Can allergy shots cause nausea?

On rare occasions, a more severe reaction will occur. In some sensitive people, the allergy shot can cause asthma symptoms, including difficulty breathing, wheezing or coughing. Or, an anaphylactic reaction will cause dizziness, nausea, a swelling of the throat that can prevent breathing or tightness of the chest.

Can allergy shots worsen symptoms?

Allergy shots can worsen allergy symptoms at first when the injection regimen starts. Since allergy shots rarely cause anaphylaxis, patients must wait in their physician’s office for 30 minutes until the danger of anaphylaxis passes.

Can allergy shots cause flu like symptoms?

Following your allergy injection, you may also develop worsening of allergy symptoms (example: runny nose, congestion, headache, fatigue, cough, shortness of breath.) or flu- like symptoms (fever, fatigue, achiness). It is important to report any adverse reactions to the allergy nurse prior to your next injection.

Can allergy shots cause weight gain?

Could the shots cause me to gain weight? No, allergy shots are not known to be associated with weight gain. On the other hand, some allergy medications are. If you are taking antihistamines on a regular basis, they may be contributing to your weight gain, as some of them are known to increase appetite.

How long do allergy shots stay in your system?

You may notice a decrease in symptoms during the build-up phase, but it may take as long as 12 months on the maintenance dose to notice an improvement. If allergy shots are successful, maintenance treatment is generally continued for three to five years.