It is likely you will be prescribed a cream if the affected areas of your skin are moist or weeping or an ointment if your skin is dry. Never give it to other people even if their condition appears to be the same as yours. If you suspect that someone has swallowed some of the medicine by accident, contact the accident and emergency department of your local hospital for advice. This includes medicines you buy and herbal and homeopathic medicines. Before using this medicine tell your doctor if you have ever had an allergic reaction after taking or using any medicine. Join the discussion on the forums. Side-effects of mometasone skin preparations What can I do if I experience this? Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. Mometasone is not generally suitable for children, although short courses of up to two weeks may occasionally be prescribed for a child by a skin specialist doctor.